diff --git a/core/api.txt b/core/api.txt
index f97c5a7328..4eeea12614 100644
--- a/core/api.txt
+++ b/core/api.txt
@@ -184,7 +184,7 @@ ion-app,prop,theme,"ios" | "md" | "ionic",undefined,false,false
 
 ion-avatar,shadow
 ion-avatar,prop,mode,"ios" | "md",undefined,false,false
-ion-avatar,prop,size,"large" | "medium" | "small" | undefined,undefined,false,false
+ion-avatar,prop,size,"large" | "medium" | "small" | "xsmall" | undefined,undefined,false,false
 ion-avatar,prop,theme,"ios" | "md" | "ionic",undefined,false,false
 ion-avatar,css-prop,--border-radius,ionic
 ion-avatar,css-prop,--border-radius,ios
diff --git a/core/src/components.d.ts b/core/src/components.d.ts
index fdef0c5812..be9bca602a 100644
--- a/core/src/components.d.ts
+++ b/core/src/components.d.ts
@@ -336,9 +336,9 @@ export namespace Components {
          */
         "mode"?: "ios" | "md";
         /**
-          * Set to `"small"` for a compact size, `"medium"` for the default height and width, or to `"large"` for a larger size.  Defaults to `"medium"` for the `ionic` theme, undefined for all other themes.
+          * Set to `"xsmall"` for the smallest size, `"small"` for a compact size, `"medium"` for the default height and width, or to `"large"` for a larger size.  Defaults to `"medium"` for the `ionic` theme, undefined for all other themes.
          */
-        "size"?: 'small' | 'medium' | 'large';
+        "size"?: `xsmall` | 'small' | 'medium' | 'large';
         /**
           * The theme determines the visual appearance of the component.
          */
@@ -5568,9 +5568,9 @@ declare namespace LocalJSX {
          */
         "mode"?: "ios" | "md";
         /**
-          * Set to `"small"` for a compact size, `"medium"` for the default height and width, or to `"large"` for a larger size.  Defaults to `"medium"` for the `ionic` theme, undefined for all other themes.
+          * Set to `"xsmall"` for the smallest size, `"small"` for a compact size, `"medium"` for the default height and width, or to `"large"` for a larger size.  Defaults to `"medium"` for the `ionic` theme, undefined for all other themes.
          */
-        "size"?: 'small' | 'medium' | 'large';
+        "size"?: `xsmall` | 'small' | 'medium' | 'large';
         /**
           * The theme determines the visual appearance of the component.
          */
diff --git a/core/src/components/avatar/avatar.ionic.scss b/core/src/components/avatar/avatar.ionic.scss
index 83f703fb0a..fbb2af9a6b 100644
--- a/core/src/components/avatar/avatar.ionic.scss
+++ b/core/src/components/avatar/avatar.ionic.scss
@@ -28,6 +28,20 @@
 // Avatar Sizes
 // --------------------------------------------------
 
+:host(.avatar-xsmall) {
+  --padding-end: #{globals.$ionic-space-050};
+  --padding-start: #{globals.$ionic-space-050};
+
+  width: globals.$ionic-scale-600;
+  height: globals.$ionic-scale-600;
+
+  font-size: globals.$ionic-font-size-300;
+
+  font-weight: globals.$ionic-font-weight-medium;
+
+  line-height: globals.$ionic-line-height-500;
+}
+
 :host(.avatar-small) {
   --padding-end: #{globals.$ionic-space-150};
   --padding-start: #{globals.$ionic-space-150};
diff --git a/core/src/components/avatar/avatar.tsx b/core/src/components/avatar/avatar.tsx
index 982f28b91b..7628a19d94 100644
--- a/core/src/components/avatar/avatar.tsx
+++ b/core/src/components/avatar/avatar.tsx
@@ -20,12 +20,12 @@ export class Avatar implements ComponentInterface {
   @Element() el!: HTMLElement;
 
   /**
-   * Set to `"small"` for a compact size, `"medium"` for the default height and width, or to
-   * `"large"` for a larger size.
+   * Set to `"xsmall"` for the smallest size, `"small"` for a compact size, `"medium"`
+   * for the default height and width, or to `"large"` for a larger size.
    *
    * Defaults to `"medium"` for the `ionic` theme, undefined for all other themes.
    */
-  @Prop() size?: 'small' | 'medium' | 'large';
+  @Prop() size?: `xsmall` | 'small' | 'medium' | 'large';
 
   get hasImage() {
     return !!this.el.querySelector('ion-img') || !!this.el.querySelector('img');
diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts b/core/src/components/avatar/test/size/avatar.e2e.ts
index 7502a0fa48..75f65222d7 100644
--- a/core/src/components/avatar/test/size/avatar.e2e.ts
+++ b/core/src/components/avatar/test/size/avatar.e2e.ts
@@ -6,6 +6,51 @@ import { configs, test } from '@utils/test/playwright';
  */
 configs({ directions: ['ltr'], modes: ['ionic-md'] }).forEach(({ config, screenshot, title }) => {
   test.describe(title('avatar: size'), () => {
+    test.describe('xsmall', () => {
+      test('should not have visual regressions when containing text', async ({ page }) => {
+        await page.setContent(
+          `
+          <ion-avatar size="xsmall">AB</ion-avatar>
+        `,
+          config
+        );
+
+        const avatar = page.locator('ion-avatar');
+
+        await expect(avatar).toHaveScreenshot(screenshot(`avatar-size-xsmall-text`));
+      });
+
+      test('should not have visual regressions when containing an icon', async ({ page }) => {
+        await page.setContent(
+          `
+          <ion-avatar size="xsmall">
+            <ion-icon name="person-outline"></ion-icon>
+          </ion-avatar>
+        `,
+          config
+        );
+
+        const avatar = page.locator('ion-avatar');
+
+        await expect(avatar).toHaveScreenshot(screenshot(`avatar-size-xsmall-icon`));
+      });
+
+      test('should not have visual regressions when containing an image', async ({ page }) => {
+        await page.setContent(
+          `
+          <ion-avatar size="xsmall">
+            <img src="/src/components/avatar/test/avatar.svg"/>
+          </ion-avatar>
+        `,
+          config
+        );
+
+        const avatar = page.locator('ion-avatar');
+
+        await expect(avatar).toHaveScreenshot(screenshot(`avatar-size-xsmall-image`));
+      });
+    });
+
     test.describe('small', () => {
       test('should not have visual regressions when containing text', async ({ page }) => {
         await page.setContent(
diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Chrome-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Firefox-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-icon-ionic-md-ltr-light-Mobile-Safari-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-image-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-image-ionic-md-ltr-light-Mobile-Chrome-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-image-ionic-md-ltr-light-Mobile-Firefox-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-image-ionic-md-ltr-light-Mobile-Firefox-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-text-ionic-md-ltr-light-Mobile-Chrome-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-text-ionic-md-ltr-light-Mobile-Chrome-linux.png
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diff --git a/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-text-ionic-md-ltr-light-Mobile-Safari-linux.png b/core/src/components/avatar/test/size/avatar.e2e.ts-snapshots/avatar-size-xsmall-text-ionic-md-ltr-light-Mobile-Safari-linux.png
new file mode 100644
index 0000000000..01b707b35b
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diff --git a/core/src/components/avatar/test/size/index.html b/core/src/components/avatar/test/size/index.html
index 4acebd512e..1eccfd7e1f 100644
--- a/core/src/components/avatar/test/size/index.html
+++ b/core/src/components/avatar/test/size/index.html
@@ -43,6 +43,7 @@
 
         <h2>Text</h2>
         <div class="container">
+          <ion-avatar size="xsmall">AB</ion-avatar>
           <ion-avatar size="small">AB</ion-avatar>
           <ion-avatar size="medium">AB</ion-avatar>
           <ion-avatar size="large">AB</ion-avatar>
@@ -50,6 +51,9 @@
 
         <h2>Icons</h2>
         <div class="container">
+          <ion-avatar size="xsmall">
+            <ion-icon name="person-outline"></ion-icon>
+          </ion-avatar>
           <ion-avatar size="small">
             <ion-icon name="person-outline"></ion-icon>
           </ion-avatar>
@@ -63,6 +67,9 @@
 
         <h2>Images</h2>
         <div class="container">
+          <ion-avatar size="xsmall">
+            <img src="/src/components/avatar/test/avatar.svg" />
+          </ion-avatar>
           <ion-avatar size="small">
             <img src="/src/components/avatar/test/avatar.svg" />
           </ion-avatar>