diff --git a/docs/contributors/code/e2e/README.md b/docs/contributors/code/e2e/README.md
index 43443cddd6aeb..0582bc321c8c5 100644
--- a/docs/contributors/code/e2e/README.md
+++ b/docs/contributors/code/e2e/README.md
@@ -57,8 +57,8 @@ page.getByRole( 'button', { name: 'Hello World' } );
 It can also be chained to perform complex queries:
 
 ```js
-// Select an option with a name "Buttons" under the "Block Library" region.
-page.getByRole( 'region', { name: 'Block Library' } )
+// Select an option with a name "Buttons" under the "Block Inserter" region.
+page.getByRole( 'region', { name: 'Block Inserter' } )
 	.getByRole( 'option', { name: 'Buttons' } )
 ```
 
diff --git a/packages/edit-post/src/components/layout/index.js b/packages/edit-post/src/components/layout/index.js
index bdf2451e27564..4776b038167ad 100644
--- a/packages/edit-post/src/components/layout/index.js
+++ b/packages/edit-post/src/components/layout/index.js
@@ -243,7 +243,7 @@ function Layout( { initialPost } ) {
 
 	const secondarySidebarLabel = isListViewOpened
 		? __( 'Document Overview' )
-		: __( 'Block Library' );
+		: __( 'Block Inserter' );
 
 	const secondarySidebar = () => {
 		if ( mode === 'visual' && isInserterOpened ) {
diff --git a/packages/edit-site/src/components/editor/index.js b/packages/edit-site/src/components/editor/index.js
index dbe268fe6adb1..ecc528e33b5f7 100644
--- a/packages/edit-site/src/components/editor/index.js
+++ b/packages/edit-site/src/components/editor/index.js
@@ -165,7 +165,7 @@ export default function Editor( { isLoading, onClick } ) {
 	const shouldShowListView = isEditMode && showVisualEditor && isListViewOpen;
 	const secondarySidebarLabel = isListViewOpen
 		? __( 'List View' )
-		: __( 'Block Library' );
+		: __( 'Block Inserter' );
 	const postWithTemplate = !! context?.postId;
 
 	let title;
diff --git a/packages/edit-widgets/src/components/layout/interface.js b/packages/edit-widgets/src/components/layout/interface.js
index ee46251eca224..929d6dddd6e99 100644
--- a/packages/edit-widgets/src/components/layout/interface.js
+++ b/packages/edit-widgets/src/components/layout/interface.js
@@ -84,7 +84,7 @@ function Interface( { blockEditorSettings } ) {
 
 	const secondarySidebarLabel = isListViewOpened
 		? __( 'List View' )
-		: __( 'Block Library' );
+		: __( 'Block Inserter' );
 
 	const hasSecondarySidebar = isListViewOpened || isInserterOpened;
 
diff --git a/packages/interface/src/components/interface-skeleton/index.js b/packages/interface/src/components/interface-skeleton/index.js
index dc04ccec6fe5e..20b0e64c602a7 100644
--- a/packages/interface/src/components/interface-skeleton/index.js
+++ b/packages/interface/src/components/interface-skeleton/index.js
@@ -88,7 +88,7 @@ function InterfaceSkeleton(
 		/* translators: accessibility text for the content landmark region. */
 		body: __( 'Content' ),
 		/* translators: accessibility text for the secondary sidebar landmark region. */
-		secondarySidebar: __( 'Block Library' ),
+		secondarySidebar: __( 'Block Inserter' ),
 		/* translators: accessibility text for the settings landmark region. */
 		sidebar: __( 'Settings' ),
 		/* translators: accessibility text for the publish landmark region. */
diff --git a/test/e2e/specs/editor/blocks/image.spec.js b/test/e2e/specs/editor/blocks/image.spec.js
index bd08650d7a815..f71662562ffe5 100644
--- a/test/e2e/specs/editor/blocks/image.spec.js
+++ b/test/e2e/specs/editor/blocks/image.spec.js
@@ -432,7 +432,7 @@ test.describe( 'Image', () => {
 			name: 'Block: Image',
 		} );
 		const blockLibrary = page.getByRole( 'region', {
-			name: 'Block Library',
+			name: 'Block Inserter',
 		} );
 
 		async function openMediaTab() {
diff --git a/test/e2e/specs/editor/various/inserting-blocks.spec.js b/test/e2e/specs/editor/various/inserting-blocks.spec.js
index 174cf88ef0c48..ce88e78e64553 100644
--- a/test/e2e/specs/editor/various/inserting-blocks.spec.js
+++ b/test/e2e/specs/editor/various/inserting-blocks.spec.js
@@ -392,7 +392,7 @@ test.describe( 'Inserting blocks (@firefox, @webkit)', () => {
 			name: 'Block Inserter',
 		} );
 		const blockLibrary = page.getByRole( 'region', {
-			name: 'Block Library',
+			name: 'Block Inserter',
 		} );
 
 		await inserterButton.click();
@@ -604,7 +604,7 @@ test.describe( 'Inserting blocks (@firefox, @webkit)', () => {
 
 		await expect(
 			page
-				.getByRole( 'region', { name: 'Block Library' } )
+				.getByRole( 'region', { name: 'Block Inserter' } )
 				.getByRole( 'searchbox', {
 					name: 'Search for blocks and patterns',
 				} )
@@ -634,7 +634,7 @@ test.describe( 'Inserting blocks (@firefox, @webkit)', () => {
 			.fill( 'More' );
 		await expect(
 			page.getByRole( 'region', {
-				name: 'Block Library',
+				name: 'Block Inserter',
 			} )
 		).toBeVisible();
 	} );
diff --git a/test/e2e/specs/site-editor/site-editor-inserter.spec.js b/test/e2e/specs/site-editor/site-editor-inserter.spec.js
index 5d5a8f9afba5f..75ee0b9cf0231 100644
--- a/test/e2e/specs/site-editor/site-editor-inserter.spec.js
+++ b/test/e2e/specs/site-editor/site-editor-inserter.spec.js
@@ -50,7 +50,7 @@ test.describe( 'Site Editor Inserter', () => {
 			name: 'Block Inserter',
 		} );
 		const blockLibrary = page.getByRole( 'region', {
-			name: 'Block Library',
+			name: 'Block Inserter',
 		} );
 
 		const beforeBlocks = await editor.getBlocks();
diff --git a/test/e2e/specs/widgets/editing-widgets.spec.js b/test/e2e/specs/widgets/editing-widgets.spec.js
index 492f35d30b4dd..2aac05e8ac396 100644
--- a/test/e2e/specs/widgets/editing-widgets.spec.js
+++ b/test/e2e/specs/widgets/editing-widgets.spec.js
@@ -59,7 +59,7 @@ test.describe( 'Widgets screen', () => {
 			.getByRole( 'button', { name: 'Block Inserter' } )
 			.click();
 		const blockLibrary = page.getByRole( 'region', {
-			name: 'Block Library',
+			name: 'Block Inserter',
 		} );
 
 		await expect(
@@ -693,7 +693,7 @@ class WidgetsScreen {
 	 */
 	getBlockInGlobalInserter = async ( blockName ) => {
 		const blockLibrary = this.#page.getByRole( 'region', {
-			name: 'Block Library',
+			name: 'Block Inserter',
 		} );
 		if ( await blockLibrary.isHidden() ) {
 			await this.#page