diff --git a/packages/components/CHANGELOG.md b/packages/components/CHANGELOG.md
index cbb12e0146b55..9a3beb0342396 100644
--- a/packages/components/CHANGELOG.md
+++ b/packages/components/CHANGELOG.md
@@ -12,7 +12,6 @@
 
 ### Internal
 
--   `DropdownMenuV2`: add support for rendering in legacy popover slot ([#56342](https://github.com/WordPress/gutenberg/pull/56342)).
 -   `Slot`: add `style` prop to `bubblesVirtually` version ([#56428](https://github.com/WordPress/gutenberg/pull/56428))
 
 ## 25.12.0 (2023-11-16)
diff --git a/packages/components/src/dropdown-menu-v2-ariakit/index.tsx b/packages/components/src/dropdown-menu-v2-ariakit/index.tsx
index b992c7b4c7b5a..10b93d8c552c1 100644
--- a/packages/components/src/dropdown-menu-v2-ariakit/index.tsx
+++ b/packages/components/src/dropdown-menu-v2-ariakit/index.tsx
@@ -26,11 +26,6 @@ import { SVG, Circle } from '@wordpress/primitives';
 import { useContextSystem, contextConnect } from '../context';
 import type { WordPressComponentProps } from '../context';
 import Icon from '../icon';
-import { useSlot } from '../slot-fill';
-import {
-	SLOT_NAME as POPOVER_DEFAULT_SLOT_NAME,
-	slotNameContext,
-} from '../popover';
 import type {
 	DropdownMenuContext as DropdownMenuContextType,
 	DropdownMenuProps,
@@ -187,9 +182,6 @@ const UnconnectedDropdownMenu = (
 		shift,
 		modal = true,
 
-		// Other props
-		slotName: slotNameProp = POPOVER_DEFAULT_SLOT_NAME,
-
 		// From internal components context
 		variant,
 
@@ -278,11 +270,6 @@ const UnconnectedDropdownMenu = (
 		[ computedDirection ]
 	);
 
-	// Render the portal in the default slot used by the legacy Popover component.
-	const slotName = useContext( slotNameContext ) || slotNameProp;
-	const slot = useSlot( slotName );
-	const portalContainer = slot.ref?.current;
-
 	return (
 		<>
 			{ /* Menu trigger */ }
@@ -318,7 +305,6 @@ const UnconnectedDropdownMenu = (
 				wrapperProps={ wrapperProps }
 				hideOnEscape={ hideOnEscape }
 				unmountOnHide
-				portalElement={ portalContainer }
 			>
 				<DropdownMenuContext.Provider value={ contextValue }>
 					{ children }
diff --git a/packages/components/src/dropdown-menu-v2-ariakit/stories/index.story.tsx b/packages/components/src/dropdown-menu-v2-ariakit/stories/index.story.tsx
index 147de3861b160..a6319c6cfdc93 100644
--- a/packages/components/src/dropdown-menu-v2-ariakit/stories/index.story.tsx
+++ b/packages/components/src/dropdown-menu-v2-ariakit/stories/index.story.tsx
@@ -28,7 +28,6 @@ import {
 import Icon from '../../icon';
 import Button from '../../button';
 import Modal from '../../modal';
-import Popover from '../../popover';
 import { createSlotFill, Provider as SlotFillProvider } from '../../slot-fill';
 import { ContextSystemProvider } from '../../context';
 
@@ -502,68 +501,3 @@ InsideModal.parameters = {
 		source: { type: 'code' },
 	},
 };
-
-export const WithDefaultSlotFill: StoryFn< typeof DropdownMenu > = (
-	props
-) => (
-	<SlotFillProvider>
-		{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-		<Popover.Slot />
-		<DropdownMenu { ...props }>
-			<DropdownMenuItem>Top level item</DropdownMenuItem>
-			<DropdownMenu
-				trigger={ <DropdownMenuItem>Open submenu</DropdownMenuItem> }
-			>
-				<DropdownMenuItem>Nested item</DropdownMenuItem>
-			</DropdownMenu>
-		</DropdownMenu>
-	</SlotFillProvider>
-);
-WithDefaultSlotFill.args = {
-	...Default.args,
-};
-
-export const WithNamedSlotFill: StoryFn< typeof DropdownMenu > = ( props ) => (
-	<SlotFillProvider>
-		{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-		<Popover.Slot name="dropdown-menu-slot-with-name" />
-		<DropdownMenu { ...props }>
-			<DropdownMenuItem>Top level item</DropdownMenuItem>
-			<DropdownMenu
-				trigger={ <DropdownMenuItem>Open submenu</DropdownMenuItem> }
-			>
-				<DropdownMenuItem>Nested item</DropdownMenuItem>
-			</DropdownMenu>
-		</DropdownMenu>
-	</SlotFillProvider>
-);
-WithNamedSlotFill.args = {
-	...Default.args,
-	slotName: 'dropdown-menu-slot-with-name',
-};
-
-// @ts-expect-error __unstableSlotNameProvider is not currently typed on Popover
-const SlotNameProvider = Popover.__unstableSlotNameProvider;
-export const WithSlotFillViaContext: StoryFn< typeof DropdownMenu > = (
-	props
-) => (
-	<SlotFillProvider>
-		<SlotNameProvider value="dropdown-menu-slot-via-context">
-			{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-			<Popover.Slot name="dropdown-menu-slot-via-context" />
-			<DropdownMenu { ...props }>
-				<DropdownMenuItem>Top level item</DropdownMenuItem>
-				<DropdownMenu
-					trigger={
-						<DropdownMenuItem>Open submenu</DropdownMenuItem>
-					}
-				>
-					<DropdownMenuItem>Nested item</DropdownMenuItem>
-				</DropdownMenu>
-			</DropdownMenu>
-		</SlotNameProvider>
-	</SlotFillProvider>
-);
-WithSlotFillViaContext.args = {
-	...Default.args,
-};
diff --git a/packages/components/src/dropdown-menu-v2-ariakit/types.ts b/packages/components/src/dropdown-menu-v2-ariakit/types.ts
index 64c7134d62bff..27d3b1e8c4339 100644
--- a/packages/components/src/dropdown-menu-v2-ariakit/types.ts
+++ b/packages/components/src/dropdown-menu-v2-ariakit/types.ts
@@ -79,13 +79,6 @@ export interface DropdownMenuProps {
 		| ( (
 				event: KeyboardEvent | React.KeyboardEvent< Element >
 		  ) => boolean );
-	/**
-	 * The name of the Slot in which the popover should be rendered. It should
-	 * be also passed to the corresponding `PopoverSlot` component.
-	 *
-	 * @default 'Popover'
-	 */
-	slotName?: string;
 }
 
 export interface DropdownMenuGroupProps {
diff --git a/packages/components/src/dropdown-menu/stories/index.story.tsx b/packages/components/src/dropdown-menu/stories/index.story.tsx
index e94b5199b2537..d4b856380db92 100644
--- a/packages/components/src/dropdown-menu/stories/index.story.tsx
+++ b/packages/components/src/dropdown-menu/stories/index.story.tsx
@@ -9,8 +9,6 @@ import type { Meta, StoryFn } from '@storybook/react';
 import { DropdownMenu } from '..';
 import MenuItem from '../../menu-item';
 import MenuGroup from '../../menu-group';
-import Popover from '../../popover';
-import { Provider as SlotFillProvider } from '../../slot-fill';
 
 /**
  * WordPress dependencies
@@ -118,53 +116,3 @@ WithChildren.args = {
 		</>
 	),
 };
-
-export const WithDefaultSlotFill: StoryFn< typeof DropdownMenu > = (
-	props
-) => (
-	<SlotFillProvider>
-		<div style={ { height: 150 } }>
-			{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-			<Popover.Slot />
-			<DropdownMenu { ...props } />
-		</div>
-	</SlotFillProvider>
-);
-WithDefaultSlotFill.args = {
-	...Default.args,
-};
-
-export const WithNamedSlotFill: StoryFn< typeof DropdownMenu > = ( props ) => (
-	<SlotFillProvider>
-		<div style={ { height: 150 } }>
-			{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-			<Popover.Slot name="dropdown-menu-slot-with-name" />
-			<DropdownMenu { ...props } />
-		</div>
-	</SlotFillProvider>
-);
-WithNamedSlotFill.args = {
-	...Default.args,
-	popoverProps: {
-		__unstableSlotName: 'dropdown-menu-slot-with-name',
-	},
-};
-
-// @ts-expect-error __unstableSlotNameProvider is not currently typed on Popover
-const SlotNameProvider = Popover.__unstableSlotNameProvider;
-export const WithSlotFillViaContext: StoryFn< typeof DropdownMenu > = (
-	props
-) => (
-	<SlotFillProvider>
-		<SlotNameProvider value="dropdown-menu-slot-via-context">
-			{ /* @ts-expect-error Slot is not currently typed on Popover */ }
-			<Popover.Slot name="dropdown-menu-slot-via-context" />
-			<div style={ { height: 150 } }>
-				<DropdownMenu { ...props } />
-			</div>
-		</SlotNameProvider>
-	</SlotFillProvider>
-);
-WithSlotFillViaContext.args = {
-	...Default.args,
-};
diff --git a/packages/components/src/popover/index.tsx b/packages/components/src/popover/index.tsx
index ff67b65cf5b0d..709d4b9884b5e 100644
--- a/packages/components/src/popover/index.tsx
+++ b/packages/components/src/popover/index.tsx
@@ -97,7 +97,7 @@ const ArrowTriangle = () => (
 	</SVG>
 );
 
-export const slotNameContext = createContext< string | undefined >( undefined );
+const slotNameContext = createContext< string | undefined >( undefined );
 
 const fallbackContainerClassname = 'components-popover__fallback-container';
 const getPopoverFallbackContainer = () => {