diff --git a/models/action.go b/models/action.go
index a7e04a72fd..1754c2a353 100644
--- a/models/action.go
+++ b/models/action.go
@@ -145,7 +145,7 @@ func (a *Action) GetActAvatar() string {
 // GetRepoUserName returns the name of the action repository owner.
 func (a *Action) GetRepoUserName() string {
 	a.loadRepo()
-	return a.Repo.MustOwner().Name
+	return a.Repo.OwnerName
 }
 
 // ShortRepoUserName returns the name of the action repository owner
diff --git a/models/fixtures/repository.yml b/models/fixtures/repository.yml
index c7f4d4d109..a68e63e309 100644
--- a/models/fixtures/repository.yml
+++ b/models/fixtures/repository.yml
@@ -1,6 +1,7 @@
 -
   id: 1
   owner_id: 2
+  owner_name: user2
   lower_name: repo1
   name: repo1
   is_private: false
@@ -16,6 +17,7 @@
 -
   id: 2
   owner_id: 2
+  owner_name: user2
   lower_name: repo2
   name: repo2
   is_private: true
@@ -30,6 +32,7 @@
 -
   id: 3
   owner_id: 3
+  owner_name: user3
   lower_name: repo3
   name: repo3
   is_private: true
@@ -43,6 +46,7 @@
 -
   id: 4
   owner_id: 5
+  owner_name: user5
   lower_name: repo4
   name: repo4
   is_private: false
@@ -56,6 +60,7 @@
 -
   id: 5
   owner_id: 3
+  owner_name: user3
   lower_name: repo5
   name: repo5
   is_private: true
@@ -70,6 +75,7 @@
 -
   id: 6
   owner_id: 10
+  owner_name: user10
   lower_name: repo6
   name: repo6
   is_private: true
@@ -83,6 +89,7 @@
 -
   id: 7
   owner_id: 10
+  owner_name: user10
   lower_name: repo7
   name: repo7
   is_private: true
@@ -96,6 +103,7 @@
 -
   id: 8
   owner_id: 10
+  owner_name: user10
   lower_name: repo8
   name: repo8
   is_private: false
@@ -109,6 +117,7 @@
 -
   id: 9
   owner_id: 11
+  owner_name: user11
   lower_name: repo9
   name: repo9
   is_private: false
@@ -122,6 +131,7 @@
 -
   id: 10
   owner_id: 12
+  owner_name: user12
   lower_name: repo10
   name: repo10
   is_private: false
@@ -137,6 +147,7 @@
   id: 11
   fork_id: 10
   owner_id: 13
+  owner_name: user13
   lower_name: repo11
   name: repo11
   is_private: false
@@ -150,6 +161,7 @@
 -
   id: 12
   owner_id: 14
+  owner_name: user14
   lower_name: test_repo_12
   name: test_repo_12
   is_private: false
@@ -163,6 +175,7 @@
 -
   id: 13
   owner_id: 14
+  owner_name: user14
   lower_name: test_repo_13
   name: test_repo_13
   is_private: true
@@ -176,6 +189,7 @@
 -
   id: 14
   owner_id: 14
+  owner_name: user14
   lower_name: test_repo_14
   name: test_repo_14
   description: test_description_14
@@ -190,6 +204,7 @@
 -
   id: 15
   owner_id: 2
+  owner_name: user2
   lower_name: repo15
   name: repo15
   is_empty: true
@@ -198,6 +213,7 @@
 -
   id: 16
   owner_id: 2
+  owner_name: user2
   lower_name: repo16
   name: repo16
   is_private: true
@@ -211,6 +227,7 @@
 -
   id: 17
   owner_id: 15
+  owner_name: user15
   lower_name: big_test_public_1
   name: big_test_public_1
   is_private: false
@@ -226,6 +243,7 @@
 -
   id: 18
   owner_id: 15
+  owner_name: user15
   lower_name: big_test_public_2
   name: big_test_public_2
   is_private: false
@@ -240,6 +258,7 @@
 -
   id: 19
   owner_id: 15
+  owner_name: user15
   lower_name: big_test_private_1
   name: big_test_private_1
   is_private: true
@@ -254,6 +273,7 @@
 -
   id: 20
   owner_id: 15
+  owner_name: user15
   lower_name: big_test_private_2
   name: big_test_private_2
   is_private: true
@@ -268,6 +288,7 @@
 -
   id: 21
   owner_id: 16
+  owner_name: user16
   lower_name: big_test_public_3
   name: big_test_public_3
   is_private: false
@@ -282,6 +303,7 @@
 -
   id: 22
   owner_id: 16
+  owner_name: user16
   lower_name: big_test_private_3
   name: big_test_private_3
   is_private: true
@@ -296,6 +318,7 @@
 -
   id: 23
   owner_id: 17
+  owner_name: user17
   lower_name: big_test_public_4
   name: big_test_public_4
   is_private: false
@@ -310,6 +333,7 @@
 -
   id: 24
   owner_id: 17
+  owner_name: user17
   lower_name: big_test_private_4
   name: big_test_private_4
   is_private: true
@@ -324,6 +348,7 @@
 -
   id: 25
   owner_id: 20
+  owner_name: user20
   lower_name: big_test_public_mirror_5
   name: big_test_public_mirror_5
   is_private: false
@@ -339,6 +364,7 @@
 -
   id: 26
   owner_id: 20
+  owner_name: user20
   lower_name: big_test_private_mirror_5
   name: big_test_private_mirror_5
   is_private: true
@@ -354,6 +380,7 @@
 -
   id: 27
   owner_id: 19
+  owner_name: user19
   lower_name: big_test_public_mirror_6
   name: big_test_public_mirror_6
   is_private: false
@@ -370,6 +397,7 @@
 -
   id: 28
   owner_id: 19
+  owner_name: user19
   lower_name: big_test_private_mirror_6
   name: big_test_private_mirror_6
   is_private: true
@@ -387,6 +415,7 @@
   id: 29
   fork_id: 27
   owner_id: 20
+  owner_name: user20
   lower_name: big_test_public_fork_7
   name: big_test_public_fork_7
   is_private: false
@@ -402,6 +431,7 @@
   id: 30
   fork_id: 28
   owner_id: 20
+  owner_name: user20
   lower_name: big_test_private_fork_7
   name: big_test_private_fork_7
   is_private: true
@@ -416,6 +446,7 @@
 -
   id: 31
   owner_id: 2
+  owner_name: user2
   lower_name: repo20
   name: repo20
   num_stars: 0
@@ -427,6 +458,7 @@
 -
   id: 32 # org public repo
   owner_id: 3
+  owner_name: user3
   lower_name: repo21
   name: repo21
   is_private: false
@@ -439,6 +471,7 @@
 -
   id: 33
   owner_id: 2
+  owner_name: user2
   lower_name: utf8
   name: utf8
   is_private: false
@@ -447,6 +480,7 @@
 -
   id: 34
   owner_id: 21
+  owner_name: user21
   lower_name: golang
   name: golang
   is_private: false
@@ -459,6 +493,7 @@
 -
   id: 35
   owner_id: 21
+  owner_name: user21
   lower_name: graphql
   name: graphql
   is_private: false
@@ -471,6 +506,7 @@
 -
   id: 36
   owner_id: 2
+  owner_name: user2
   lower_name: commits_search_test
   name: commits_search_test
   is_private: false
@@ -483,6 +519,7 @@
 -
   id: 37
   owner_id: 2
+  owner_name: user2
   lower_name: git_hooks_test
   name: git_hooks_test
   is_private: false
@@ -495,6 +532,7 @@
 -
   id: 38
   owner_id: 22
+  owner_name: limited_org
   lower_name: public_repo_on_limited_org
   name: public_repo_on_limited_org
   is_private: false
@@ -507,6 +545,7 @@
 -
   id: 39
   owner_id: 22
+  owner_name: limited_org
   lower_name: private_repo_on_limited_org
   name: private_repo_on_limited_org
   is_private: true
@@ -519,6 +558,7 @@
 -
   id: 40
   owner_id: 23
+  owner_name: limited_org
   lower_name: public_repo_on_private_org
   name: public_repo_on_private_org
   is_private: false
@@ -531,6 +571,7 @@
 -
   id: 41
   owner_id: 23
+  owner_name: limited_org
   lower_name: private_repo_on_private_org
   name: private_repo_on_private_org
   is_private: true
@@ -542,6 +583,7 @@
 -
   id: 42
   owner_id: 2
+  owner_name: user2
   lower_name: glob
   name: glob
   is_private: false
@@ -554,6 +596,7 @@
 -
   id: 43
   owner_id: 26
+  owner_name: org26
   lower_name: repo26
   name: repo26
   is_private: true
@@ -566,6 +609,7 @@
 -
   id: 44
   owner_id: 27
+  owner_name: user27
   lower_name: template1
   name: template1
   is_private: false
@@ -579,6 +623,7 @@
 -
   id: 45
   owner_id: 27
+  owner_name: user27
   lower_name: template2
   name: template2
   is_private: false
@@ -592,6 +637,7 @@
 -
   id: 46
   owner_id: 26
+  owner_name: org26
   lower_name: repo_external_tracker
   name: repo_external_tracker
   is_private: false
@@ -604,6 +650,7 @@
 -
   id: 47
   owner_id: 26
+  owner_name: org26
   lower_name: repo_external_tracker_numeric
   name: repo_external_tracker_numeric
   is_private: false
@@ -616,6 +663,7 @@
 -
   id: 48
   owner_id: 26
+  owner_name: org26
   lower_name: repo_external_tracker_alpha
   name: repo_external_tracker_alpha
   is_private: false
diff --git a/models/helper_environment.go b/models/helper_environment.go
index 35af17adb1..112df96823 100644
--- a/models/helper_environment.go
+++ b/models/helper_environment.go
@@ -43,7 +43,7 @@ func FullPushingEnvironment(author, committer *User, repo *Repository, repoName
 		"GIT_COMMITTER_NAME="+committerSig.Name,
 		"GIT_COMMITTER_EMAIL="+committerSig.Email,
 		EnvRepoName+"="+repoName,
-		EnvRepoUsername+"="+repo.MustOwnerName(),
+		EnvRepoUsername+"="+repo.OwnerName,
 		EnvRepoIsWiki+"="+isWiki,
 		EnvPusherName+"="+committer.Name,
 		EnvPusherID+"="+fmt.Sprintf("%d", committer.ID),
diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index dc5cc48c64..703c168b00 100644
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -294,6 +294,8 @@ var migrations = []Migration{
 	NewMigration("Add commit id and stale to reviews", addReviewCommitAndStale),
 	// v119 -> v120
 	NewMigration("Fix migrated repositories' git service type", fixMigratedRepositoryServiceType),
+	// v120 -> v121
+	NewMigration("Add owner_name on table repository", addOwnerNameOnRepository),
 }
 
 // Migrate database to current version
diff --git a/models/migrations/v120.go b/models/migrations/v120.go
new file mode 100644
index 0000000000..91d5b503f3
--- /dev/null
+++ b/models/migrations/v120.go
@@ -0,0 +1,20 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"xorm.io/xorm"
+)
+
+func addOwnerNameOnRepository(x *xorm.Engine) error {
+	type Repository struct {
+		OwnerName string
+	}
+	if err := x.Sync2(new(Repository)); err != nil {
+		return err
+	}
+	_, err := x.Exec("UPDATE repository SET owner_name = (SELECT name FROM `user` WHERE `user`.id = repository.owner_id)")
+	return err
+}
diff --git a/models/pull.go b/models/pull.go
index bf2527679f..0435311e4e 100644
--- a/models/pull.go
+++ b/models/pull.go
@@ -70,7 +70,7 @@ func (pr *PullRequest) MustHeadUserName() string {
 		log.Error("LoadHeadRepo: %v", err)
 		return ""
 	}
-	return pr.HeadRepo.MustOwnerName()
+	return pr.HeadRepo.OwnerName
 }
 
 // Note: don't try to get Issue because will end up recursive querying.
diff --git a/models/repo.go b/models/repo.go
index 6c9623ea2c..e15c22e822 100644
--- a/models/repo.go
+++ b/models/repo.go
@@ -149,9 +149,9 @@ const (
 
 // Repository represents a git repository.
 type Repository struct {
-	ID                  int64                  `xorm:"pk autoincr"`
-	OwnerID             int64                  `xorm:"UNIQUE(s) index"`
-	OwnerName           string                 `xorm:"-"`
+	ID                  int64 `xorm:"pk autoincr"`
+	OwnerID             int64 `xorm:"UNIQUE(s) index"`
+	OwnerName           string
 	Owner               *User                  `xorm:"-"`
 	LowerName           string                 `xorm:"UNIQUE(s) INDEX NOT NULL"`
 	Name                string                 `xorm:"INDEX NOT NULL"`
@@ -252,17 +252,9 @@ func (repo *Repository) MustOwner() *User {
 	return repo.mustOwner(x)
 }
 
-// MustOwnerName always returns valid owner name to avoid
-// conceptually impossible error handling.
-// It returns "error" and logs error details when error
-// occurs.
-func (repo *Repository) MustOwnerName() string {
-	return repo.mustOwnerName(x)
-}
-
 // FullName returns the repository full name
 func (repo *Repository) FullName() string {
-	return repo.MustOwnerName() + "/" + repo.Name
+	return repo.OwnerName + "/" + repo.Name
 }
 
 // HTMLURL returns the repository HTML URL
@@ -294,7 +286,7 @@ func (repo *Repository) GetCommitsCountCacheKey(contextName string, isRef bool)
 func (repo *Repository) innerAPIFormat(e Engine, mode AccessMode, isParent bool) *api.Repository {
 	var parent *api.Repository
 
-	cloneLink := repo.cloneLink(e, false)
+	cloneLink := repo.cloneLink(false)
 	permission := &api.Permission{
 		Admin: mode >= AccessModeAdmin,
 		Push:  mode >= AccessModeWrite,
@@ -356,6 +348,8 @@ func (repo *Repository) innerAPIFormat(e Engine, mode AccessMode, isParent bool)
 		allowSquash = config.AllowSquash
 	}
 
+	repo.mustOwner(e)
+
 	return &api.Repository{
 		ID:                        repo.ID,
 		Owner:                     repo.Owner.APIFormat(),
@@ -533,46 +527,11 @@ func (repo *Repository) mustOwner(e Engine) *User {
 	return repo.Owner
 }
 
-func (repo *Repository) getOwnerName(e Engine) error {
-	if len(repo.OwnerName) > 0 {
-		return nil
-	}
-
-	if repo.Owner != nil {
-		repo.OwnerName = repo.Owner.Name
-		return nil
-	}
-
-	u := new(User)
-	has, err := e.ID(repo.OwnerID).Cols("name").Get(u)
-	if err != nil {
-		return err
-	} else if !has {
-		return ErrUserNotExist{repo.OwnerID, "", 0}
-	}
-	repo.OwnerName = u.Name
-	return nil
-}
-
-// GetOwnerName returns the repository owner name
-func (repo *Repository) GetOwnerName() error {
-	return repo.getOwnerName(x)
-}
-
-func (repo *Repository) mustOwnerName(e Engine) string {
-	if err := repo.getOwnerName(e); err != nil {
-		log.Error("Error loading repository owner name: %v", err)
-		return "error"
-	}
-
-	return repo.OwnerName
-}
-
 // ComposeMetas composes a map of metas for properly rendering issue links and external issue trackers.
 func (repo *Repository) ComposeMetas() map[string]string {
 	if repo.RenderingMetas == nil {
 		metas := map[string]string{
-			"user":     repo.MustOwner().Name,
+			"user":     repo.OwnerName,
 			"repo":     repo.Name,
 			"repoPath": repo.RepoPath(),
 		}
@@ -588,6 +547,7 @@ func (repo *Repository) ComposeMetas() map[string]string {
 			}
 		}
 
+		repo.MustOwner()
 		if repo.Owner.IsOrganization() {
 			teams := make([]string, 0, 5)
 			_ = x.Table("team_repo").
@@ -597,7 +557,7 @@ func (repo *Repository) ComposeMetas() map[string]string {
 				OrderBy("team.lower_name").
 				Find(&teams)
 			metas["teams"] = "," + strings.Join(teams, ",") + ","
-			metas["org"] = repo.Owner.LowerName
+			metas["org"] = strings.ToLower(repo.OwnerName)
 		}
 
 		repo.RenderingMetas = metas
@@ -711,13 +671,9 @@ func (repo *Repository) getTemplateRepo(e Engine) (err error) {
 	return err
 }
 
-func (repo *Repository) repoPath(e Engine) string {
-	return RepoPath(repo.mustOwnerName(e), repo.Name)
-}
-
 // RepoPath returns the repository path
 func (repo *Repository) RepoPath() string {
-	return repo.repoPath(x)
+	return RepoPath(repo.OwnerName, repo.Name)
 }
 
 // GitConfigPath returns the path to a repository's git config/ directory
@@ -742,7 +698,7 @@ func (repo *Repository) Link() string {
 
 // ComposeCompareURL returns the repository comparison URL
 func (repo *Repository) ComposeCompareURL(oldCommitID, newCommitID string) string {
-	return fmt.Sprintf("%s/%s/compare/%s...%s", repo.MustOwner().Name, repo.Name, oldCommitID, newCommitID)
+	return fmt.Sprintf("%s/compare/%s...%s", repo.FullName(), oldCommitID, newCommitID)
 }
 
 // UpdateDefaultBranch updates the default branch
@@ -757,7 +713,7 @@ func (repo *Repository) IsOwnedBy(userID int64) bool {
 }
 
 func (repo *Repository) updateSize(e Engine) error {
-	size, err := util.GetDirectorySize(repo.repoPath(e))
+	size, err := util.GetDirectorySize(repo.RepoPath())
 	if err != nil {
 		return fmt.Errorf("UpdateSize: %v", err)
 	}
@@ -912,7 +868,7 @@ func ComposeHTTPSCloneURL(owner, repo string) string {
 	return fmt.Sprintf("%s%s/%s.git", setting.AppURL, url.PathEscape(owner), url.PathEscape(repo))
 }
 
-func (repo *Repository) cloneLink(e Engine, isWiki bool) *CloneLink {
+func (repo *Repository) cloneLink(isWiki bool) *CloneLink {
 	repoName := repo.Name
 	if isWiki {
 		repoName += ".wiki"
@@ -923,22 +879,21 @@ func (repo *Repository) cloneLink(e Engine, isWiki bool) *CloneLink {
 		sshUser = setting.SSH.BuiltinServerUser
 	}
 
-	repo.Owner = repo.mustOwner(e)
 	cl := new(CloneLink)
 	if setting.SSH.Port != 22 {
-		cl.SSH = fmt.Sprintf("ssh://%s@%s:%d/%s/%s.git", sshUser, setting.SSH.Domain, setting.SSH.Port, repo.Owner.Name, repoName)
+		cl.SSH = fmt.Sprintf("ssh://%s@%s:%d/%s/%s.git", sshUser, setting.SSH.Domain, setting.SSH.Port, repo.OwnerName, repoName)
 	} else if setting.Repository.UseCompatSSHURI {
-		cl.SSH = fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, setting.SSH.Domain, repo.Owner.Name, repoName)
+		cl.SSH = fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, setting.SSH.Domain, repo.OwnerName, repoName)
 	} else {
-		cl.SSH = fmt.Sprintf("%s@%s:%s/%s.git", sshUser, setting.SSH.Domain, repo.Owner.Name, repoName)
+		cl.SSH = fmt.Sprintf("%s@%s:%s/%s.git", sshUser, setting.SSH.Domain, repo.OwnerName, repoName)
 	}
-	cl.HTTPS = ComposeHTTPSCloneURL(repo.Owner.Name, repoName)
+	cl.HTTPS = ComposeHTTPSCloneURL(repo.OwnerName, repoName)
 	return cl
 }
 
 // CloneLink returns clone URLs of repository.
 func (repo *Repository) CloneLink() (cl *CloneLink) {
-	return repo.cloneLink(x, false)
+	return repo.cloneLink(false)
 }
 
 // CheckCreateRepository check if could created a repository
@@ -1137,7 +1092,7 @@ func prepareRepoCommit(e Engine, repo *Repository, tmpDir, repoPath string, opts
 		return fmt.Errorf("getRepoInitFile[%s]: %v", opts.Readme, err)
 	}
 
-	cloneLink := repo.cloneLink(e, false)
+	cloneLink := repo.cloneLink(false)
 	match := map[string]string{
 		"Name":           repo.Name,
 		"Description":    repo.Description,
@@ -1210,7 +1165,7 @@ func initRepository(e Engine, repoPath string, u *User, repo *Repository, opts C
 	if opts.AutoInit {
 		tmpDir, err := ioutil.TempDir(os.TempDir(), "gitea-"+repo.Name)
 		if err != nil {
-			return fmt.Errorf("Failed to create temp dir for repository %s: %v", repo.repoPath(e), err)
+			return fmt.Errorf("Failed to create temp dir for repository %s: %v", repo.RepoPath(), err)
 		}
 
 		defer os.RemoveAll(tmpDir)
@@ -1366,6 +1321,7 @@ func CreateRepository(doer, u *User, opts CreateRepoOptions) (_ *Repository, err
 	repo := &Repository{
 		OwnerID:                         u.ID,
 		Owner:                           u,
+		OwnerName:                       u.Name,
 		Name:                            opts.Name,
 		LowerName:                       strings.ToLower(opts.Name),
 		Description:                     opts.Description,
@@ -1485,6 +1441,7 @@ func TransferOwnership(doer *User, newOwnerName string, repo *Repository) error
 	// new owner.
 	repo.OwnerID = newOwner.ID
 	repo.Owner = newOwner
+	repo.OwnerName = newOwner.Name
 
 	// Update repository.
 	if _, err := sess.ID(repo.ID).Update(repo); err != nil {
@@ -1683,7 +1640,7 @@ func updateRepository(e Engine, repo *Repository, visibilityChanged bool) (err e
 		}
 
 		// Create/Remove git-daemon-export-ok for git-daemon...
-		daemonExportFile := path.Join(repo.repoPath(e), `git-daemon-export-ok`)
+		daemonExportFile := path.Join(repo.RepoPath(), `git-daemon-export-ok`)
 		if repo.IsPrivate && com.IsExist(daemonExportFile) {
 			if err = os.Remove(daemonExportFile); err != nil {
 				log.Error("Failed to remove %s: %v", daemonExportFile, err)
@@ -1905,7 +1862,7 @@ func DeleteRepository(doer *User, uid, repoID int64) error {
 	}
 
 	// FIXME: Remove repository files should be executed after transaction succeed.
-	repoPath := repo.repoPath(sess)
+	repoPath := repo.RepoPath()
 	removeAllWithNotice(sess, "Delete repository files", repoPath)
 
 	err = repo.deleteWiki(sess)
@@ -2290,7 +2247,7 @@ func GitGcRepos() error {
 					SetDescription(fmt.Sprintf("Repository Garbage Collection: %s", repo.FullName())).
 					RunInDirTimeout(
 						time.Duration(setting.Git.Timeout.GC)*time.Second,
-						RepoPath(repo.Owner.Name, repo.Name)); err != nil {
+						repo.RepoPath()); err != nil {
 					log.Error("Repository garbage collection failed for %v. Stdout: %s\nError: %v", repo, stdout, err)
 					return fmt.Errorf("Repository garbage collection failed: Error: %v", err)
 				}
@@ -2517,6 +2474,7 @@ func ForkRepository(doer, owner *User, oldRepo *Repository, name, desc string) (
 	repo := &Repository{
 		OwnerID:       owner.ID,
 		Owner:         owner,
+		OwnerName:     owner.Name,
 		Name:          name,
 		LowerName:     strings.ToLower(name),
 		Description:   desc,
@@ -2543,7 +2501,7 @@ func ForkRepository(doer, owner *User, oldRepo *Repository, name, desc string) (
 
 	repoPath := RepoPath(owner.Name, repo.Name)
 	if stdout, err := git.NewCommand(
-		"clone", "--bare", oldRepo.repoPath(sess), repoPath).
+		"clone", "--bare", oldRepo.RepoPath(), repoPath).
 		SetDescription(fmt.Sprintf("ForkRepository(git clone): %s to %s", oldRepo.FullName(), repo.FullName())).
 		RunInDirTimeout(10*time.Minute, ""); err != nil {
 		log.Error("Fork Repository (git clone) Failed for %v (from %v):\nStdout: %s\nError: %v", repo, oldRepo, stdout, err)
diff --git a/models/repo_generate.go b/models/repo_generate.go
index 1b0466eaa7..6761c1ce41 100644
--- a/models/repo_generate.go
+++ b/models/repo_generate.go
@@ -107,7 +107,7 @@ func generateRepoCommit(e Engine, repo, templateRepo, generateRepo *Repository,
 	)
 
 	// Clone to temporary path and do the init commit.
-	templateRepoPath := templateRepo.repoPath(e)
+	templateRepoPath := templateRepo.RepoPath()
 	if err := git.Clone(templateRepoPath, tmpDir, git.CloneRepoOptions{
 		Depth: 1,
 	}); err != nil {
@@ -168,7 +168,7 @@ func generateRepoCommit(e Engine, repo, templateRepo, generateRepo *Repository,
 		return err
 	}
 
-	repoPath := repo.repoPath(e)
+	repoPath := repo.RepoPath()
 	if stdout, err := git.NewCommand("remote", "add", "origin", repoPath).
 		SetDescription(fmt.Sprintf("generateRepoCommit (git remote add): %s to %s", templateRepoPath, tmpDir)).
 		RunInDirWithEnv(tmpDir, env); err != nil {
@@ -183,7 +183,7 @@ func generateRepoCommit(e Engine, repo, templateRepo, generateRepo *Repository,
 func generateRepository(e Engine, repo, templateRepo, generateRepo *Repository) (err error) {
 	tmpDir, err := ioutil.TempDir(os.TempDir(), "gitea-"+repo.Name)
 	if err != nil {
-		return fmt.Errorf("Failed to create temp dir for repository %s: %v", repo.repoPath(e), err)
+		return fmt.Errorf("Failed to create temp dir for repository %s: %v", repo.RepoPath(), err)
 	}
 
 	defer func() {
@@ -263,13 +263,13 @@ func GenerateTopics(ctx DBContext, templateRepo, generateRepo *Repository) error
 
 // GenerateGitHooks generates git hooks from a template repository
 func GenerateGitHooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
-	generateGitRepo, err := git.OpenRepository(generateRepo.repoPath(ctx.e))
+	generateGitRepo, err := git.OpenRepository(generateRepo.RepoPath())
 	if err != nil {
 		return err
 	}
 	defer generateGitRepo.Close()
 
-	templateGitRepo, err := git.OpenRepository(templateRepo.repoPath(ctx.e))
+	templateGitRepo, err := git.OpenRepository(templateRepo.RepoPath())
 	if err != nil {
 		return err
 	}
@@ -365,9 +365,9 @@ func generateExpansion(src string, templateRepo, generateRepo *Repository) strin
 		case "TEMPLATE_DESCRIPTION":
 			return templateRepo.Description
 		case "REPO_OWNER":
-			return generateRepo.MustOwnerName()
+			return generateRepo.OwnerName
 		case "TEMPLATE_OWNER":
-			return templateRepo.MustOwnerName()
+			return templateRepo.OwnerName
 		case "REPO_LINK":
 			return generateRepo.Link()
 		case "TEMPLATE_LINK":
diff --git a/models/repo_indexer.go b/models/repo_indexer.go
index aee3c74b35..a9a516175d 100644
--- a/models/repo_indexer.go
+++ b/models/repo_indexer.go
@@ -62,13 +62,13 @@ func (repo *Repository) GetIndexerStatus() error {
 // UpdateIndexerStatus updates indexer status
 func (repo *Repository) UpdateIndexerStatus(sha string) error {
 	if err := repo.GetIndexerStatus(); err != nil {
-		return fmt.Errorf("UpdateIndexerStatus: Unable to getIndexerStatus for repo: %s/%s Error: %v", repo.MustOwnerName(), repo.Name, err)
+		return fmt.Errorf("UpdateIndexerStatus: Unable to getIndexerStatus for repo: %s Error: %v", repo.FullName(), err)
 	}
 	if len(repo.IndexerStatus.CommitSha) == 0 {
 		repo.IndexerStatus.CommitSha = sha
 		_, err := x.Insert(repo.IndexerStatus)
 		if err != nil {
-			return fmt.Errorf("UpdateIndexerStatus: Unable to insert repoIndexerStatus for repo: %s/%s Sha: %s Error: %v", repo.MustOwnerName(), repo.Name, sha, err)
+			return fmt.Errorf("UpdateIndexerStatus: Unable to insert repoIndexerStatus for repo: %s Sha: %s Error: %v", repo.FullName(), sha, err)
 		}
 		return nil
 	}
@@ -76,7 +76,7 @@ func (repo *Repository) UpdateIndexerStatus(sha string) error {
 	_, err := x.ID(repo.IndexerStatus.ID).Cols("commit_sha").
 		Update(repo.IndexerStatus)
 	if err != nil {
-		return fmt.Errorf("UpdateIndexerStatus: Unable to update repoIndexerStatus for repo: %s/%s Sha: %s Error: %v", repo.MustOwnerName(), repo.Name, sha, err)
+		return fmt.Errorf("UpdateIndexerStatus: Unable to update repoIndexerStatus for repo: %s Sha: %s Error: %v", repo.FullName(), sha, err)
 	}
 	return nil
 }
diff --git a/models/repo_permission.go b/models/repo_permission.go
index 374c6f8d56..cd20224912 100644
--- a/models/repo_permission.go
+++ b/models/repo_permission.go
@@ -164,10 +164,6 @@ func getUserRepoPermission(e Engine, repo *Repository, user *User) (perm Permiss
 		return
 	}
 
-	if repo.Owner == nil {
-		repo.mustOwner(e)
-	}
-
 	var isCollaborator bool
 	if user != nil {
 		isCollaborator, err = repo.isCollaborator(e, user.ID)
@@ -176,6 +172,10 @@ func getUserRepoPermission(e Engine, repo *Repository, user *User) (perm Permiss
 		}
 	}
 
+	if err = repo.getOwner(e); err != nil {
+		return
+	}
+
 	// Prevent strangers from checking out public repo of private orginization
 	// Allow user if they are collaborator of a repo within a private orginization but not a member of the orginization itself
 	if repo.Owner.IsOrganization() && !HasOrgVisible(repo.Owner, user) && !isCollaborator {
diff --git a/models/repo_test.go b/models/repo_test.go
index 7a2227c820..3a6555c766 100644
--- a/models/repo_test.go
+++ b/models/repo_test.go
@@ -22,6 +22,7 @@ func TestMetas(t *testing.T) {
 
 	repo := &Repository{Name: "testRepo"}
 	repo.Owner = &User{Name: "testOwner"}
+	repo.OwnerName = repo.Owner.Name
 
 	repo.Units = nil
 
diff --git a/models/wiki.go b/models/wiki.go
index 32a0cc1627..223abf1edc 100644
--- a/models/wiki.go
+++ b/models/wiki.go
@@ -1,4 +1,5 @@
 // Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors. All rights reserved.
 // Use of this source code is governed by a MIT-style
 // license that can be found in the LICENSE file.
 
@@ -13,7 +14,7 @@ import (
 
 // WikiCloneLink returns clone URLs of repository wiki.
 func (repo *Repository) WikiCloneLink() *CloneLink {
-	return repo.cloneLink(x, true)
+	return repo.cloneLink(true)
 }
 
 // WikiPath returns wiki data path by given user and repository name.
@@ -23,7 +24,7 @@ func WikiPath(userName, repoName string) string {
 
 // WikiPath returns wiki data path for given repository.
 func (repo *Repository) WikiPath() string {
-	return WikiPath(repo.MustOwnerName(), repo.Name)
+	return WikiPath(repo.OwnerName, repo.Name)
 }
 
 // HasWiki returns true if repository has wiki.
diff --git a/modules/context/repo.go b/modules/context/repo.go
index 4c32e846eb..86c7df2b05 100644
--- a/modules/context/repo.go
+++ b/modules/context/repo.go
@@ -256,7 +256,7 @@ func RedirectToRepo(ctx *Context, redirectRepoID int64) {
 	redirectPath := strings.Replace(
 		ctx.Req.URL.Path,
 		fmt.Sprintf("%s/%s", ownerName, previousRepoName),
-		fmt.Sprintf("%s/%s", repo.MustOwnerName(), repo.Name),
+		repo.FullName(),
 		1,
 	)
 	if ctx.Req.URL.RawQuery != "" {
diff --git a/routers/admin/repos.go b/routers/admin/repos.go
index 73aa66807b..39a1d7596c 100644
--- a/routers/admin/repos.go
+++ b/routers/admin/repos.go
@@ -43,7 +43,7 @@ func DeleteRepo(ctx *context.Context) {
 		ctx.ServerError("DeleteRepository", err)
 		return
 	}
-	log.Trace("Repository deleted: %s/%s", repo.MustOwner().Name, repo.Name)
+	log.Trace("Repository deleted: %s", repo.FullName())
 
 	ctx.Flash.Success(ctx.Tr("repo.settings.deletion_success"))
 	ctx.JSON(200, map[string]interface{}{
diff --git a/routers/repo/compare.go b/routers/repo/compare.go
index d23bccd09a..bb800f9ef7 100644
--- a/routers/repo/compare.go
+++ b/routers/repo/compare.go
@@ -361,10 +361,8 @@ func parseBaseRepoInfo(ctx *context.Context, repo *models.Repository) error {
 	if err := repo.GetBaseRepo(); err != nil {
 		return err
 	}
-	if err := repo.BaseRepo.GetOwnerName(); err != nil {
-		return err
-	}
-	baseGitRepo, err := git.OpenRepository(models.RepoPath(repo.BaseRepo.OwnerName, repo.BaseRepo.Name))
+
+	baseGitRepo, err := git.OpenRepository(repo.BaseRepo.RepoPath())
 	if err != nil {
 		return err
 	}
diff --git a/services/mailer/mail.go b/services/mailer/mail.go
index fa40170d46..4b8e46715f 100644
--- a/services/mailer/mail.go
+++ b/services/mailer/mail.go
@@ -10,7 +10,6 @@ import (
 	"fmt"
 	"html/template"
 	"mime"
-	"path"
 	"regexp"
 	"strings"
 	texttmpl "text/template"
@@ -142,7 +141,7 @@ func SendRegisterNotifyMail(locale Locale, u *models.User) {
 
 // SendCollaboratorMail sends mail notification to new collaborator.
 func SendCollaboratorMail(u, doer *models.User, repo *models.Repository) {
-	repoName := path.Join(repo.Owner.Name, repo.Name)
+	repoName := repo.FullName()
 	subject := fmt.Sprintf("%s added you to %s", doer.DisplayName(), repoName)
 
 	data := map[string]interface{}{
diff --git a/services/pull/patch.go b/services/pull/patch.go
index 57a2997b36..1dbeb81c01 100644
--- a/services/pull/patch.go
+++ b/services/pull/patch.go
@@ -55,8 +55,8 @@ func DownloadDiffOrPatch(pr *models.PullRequest, w io.Writer, patch bool) error
 	}
 	pr.MergeBase = strings.TrimSpace(pr.MergeBase)
 	if err := gitRepo.GetDiffOrPatch(pr.MergeBase, "tracking", w, patch); err != nil {
-		log.Error("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
-		return fmt.Errorf("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
+		log.Error("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
+		return fmt.Errorf("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
 	}
 	return nil
 }
@@ -108,8 +108,8 @@ func TestPatch(pr *models.PullRequest) error {
 
 	if err := gitRepo.GetDiff(pr.MergeBase, "tracking", tmpPatchFile); err != nil {
 		tmpPatchFile.Close()
-		log.Error("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
-		return fmt.Errorf("Unable to get patch file from %s to %s in %s/%s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name, err)
+		log.Error("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
+		return fmt.Errorf("Unable to get patch file from %s to %s in %s Error: %v", pr.MergeBase, pr.HeadBranch, pr.BaseRepo.FullName(), err)
 	}
 	stat, err := tmpPatchFile.Stat()
 	if err != nil {
diff --git a/services/pull/pull.go b/services/pull/pull.go
index b459d81cf7..bc71e52213 100644
--- a/services/pull/pull.go
+++ b/services/pull/pull.go
@@ -256,7 +256,7 @@ func checkIfPRContentChanged(pr *models.PullRequest, oldCommitID, newCommitID st
 
 	// Add a temporary remote.
 	tmpRemote := "checkIfPRContentChanged-" + com.ToStr(time.Now().UnixNano())
-	if err = headGitRepo.AddRemote(tmpRemote, models.RepoPath(pr.BaseRepo.MustOwner().Name, pr.BaseRepo.Name), true); err != nil {
+	if err = headGitRepo.AddRemote(tmpRemote, pr.BaseRepo.RepoPath(), true); err != nil {
 		return false, fmt.Errorf("AddRemote: %s/%s-%s: %v", pr.HeadRepo.OwnerName, pr.HeadRepo.Name, tmpRemote, err)
 	}
 	defer func() {