diff --git a/packages/ui/CHANGELOG.md b/packages/ui/CHANGELOG.md
index 91370e60ceebe5..c949cc9bcc3d5b 100644
--- a/packages/ui/CHANGELOG.md
+++ b/packages/ui/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Breaking Changes
+
+-   Remove `Box` component. Components that previously used `Box` should use the equivalent design tokens in their CSS directly ([#74981](https://github.com/WordPress/gutenberg/issues/74981)).
+
 ### New Features
 
 -   Add `Tabs` primitive ([#74652](https://github.com/WordPress/gutenberg/pull/74652)).
diff --git a/packages/ui/README.md b/packages/ui/README.md
index ef1a3ad5a59537..f22f7a3a076c02 100644
--- a/packages/ui/README.md
+++ b/packages/ui/README.md
@@ -39,13 +39,14 @@ import '@wordpress/theme/design-tokens.css';
 ### Basic Component Usage
 
 ```tsx
-import { Box } from '@wordpress/ui';
+import { Stack } from '@wordpress/ui';
 
 function MyComponent() {
 	return (
-		<Box background="neutral" padding="sm">
-			Hello World
-		</Box>
+		<Stack gap="sm">
+			<div>Item 1</div>
+			<div>Item 2</div>
+		</Stack>
 	);
 }
 ```
@@ -59,11 +60,11 @@ All components in the design system follow consistent patterns for maximum flexi
 Every component supports the `render` prop for complete control over the underlying HTML element:
 
 ```tsx
-import { Box } from '@wordpress/ui';
+import { Stack } from '@wordpress/ui';
 
 function MyComponent() {
-	// Render Box as a <span /> instead of the default <div />
-	return <Box render={ <span /> }>{ /* ... */ }</Box>;
+	// Render Stack as a <section /> instead of the default <div />
+	return <Stack render={ <section /> }>{ /* ... */ }</Stack>;
 }
 ```
 
@@ -73,12 +74,12 @@ All components forward refs to their underlying DOM elements:
 
 ```tsx
 import { useRef } from '@wordpress/element';
-import { Box } from '@wordpress/ui';
+import { Stack } from '@wordpress/ui';
 
 function MyComponent() {
-	const boxRef = useRef< HTMLDivElement >( null );
+	const stackRef = useRef< HTMLDivElement >( null );
 
-	return <Box ref={ boxRef }>{ /* ... */ }</Box>;
+	return <Stack ref={ stackRef }>{ /* ... */ }</Stack>;
 }
 ```
 
@@ -87,11 +88,11 @@ function MyComponent() {
 Components merge provided `className` props with their internal styles:
 
 ```tsx
-import { Box } from '@wordpress/ui';
+import { Stack } from '@wordpress/ui';
 
 function MyComponent() {
 	// Your custom CSS className is merged with component styles
-	return <Box className="my-custom-class">{ /* ... */ }</Box>;
+	return <Stack className="my-custom-class">{ /* ... */ }</Stack>;
 }
 ```
 
diff --git a/packages/ui/src/badge/badge.tsx b/packages/ui/src/badge/badge.tsx
index 054f46066a9220..abd9fc40bf4616 100644
--- a/packages/ui/src/badge/badge.tsx
+++ b/packages/ui/src/badge/badge.tsx
@@ -1,88 +1,29 @@
+import { useRender, mergeProps } from '@base-ui/react';
+import clsx from 'clsx';
 import { forwardRef } from '@wordpress/element';
-import { Box } from '../box';
-import { type BoxProps } from '../box/types';
 import { type BadgeProps } from './types';
-
-/**
- * Default render function that renders a span element with the given props.
- */
-const DEFAULT_RENDER = ( props: React.ComponentPropsWithoutRef< 'span' > ) => (
-	<span { ...props } />
-);
-
-/**
- * Maps intent values to Box backgroundColor and color props.
- * Uses strong emphasis styles (as emphasis prop has been removed).
- */
-const getIntentStyles = (
-	intent: BadgeProps[ 'intent' ]
-): Partial< BoxProps > => {
-	switch ( intent ) {
-		case 'high':
-			return {
-				backgroundColor: 'error',
-				color: 'error',
-			};
-		case 'medium':
-			return {
-				backgroundColor: 'warning',
-				color: 'warning',
-			};
-		case 'low':
-			return {
-				backgroundColor: 'caution',
-				color: 'caution',
-			};
-		case 'stable':
-			return {
-				backgroundColor: 'success',
-				color: 'success',
-			};
-		case 'informational':
-			return {
-				backgroundColor: 'info',
-				color: 'info',
-			};
-		case 'draft':
-			return {
-				backgroundColor: 'neutral-weak',
-				color: 'neutral',
-			};
-		case 'none':
-		default:
-			return {
-				backgroundColor: 'neutral',
-				color: 'neutral-weak',
-			};
-	}
-};
+import styles from './style.module.css';
 
 /**
  * A badge component for displaying labels with semantic intent.
- * Built on the Box primitive for consistent theming and accessibility.
  */
-export const Badge = forwardRef< HTMLDivElement, BadgeProps >( function Badge(
-	{ children, intent = 'none', render = DEFAULT_RENDER, ...props },
+export const Badge = forwardRef< HTMLSpanElement, BadgeProps >( function Badge(
+	{ children, intent = 'none', render, className, ...props },
 	ref
 ) {
-	const intentStyles = getIntentStyles( intent );
+	const element = useRender( {
+		render,
+		defaultTagName: 'span',
+		ref,
+		props: mergeProps< 'span' >( props, {
+			className: clsx(
+				styles.badge,
+				styles[ `is-${ intent }-intent` ],
+				className
+			),
+			children,
+		} ),
+	} );
 
-	return (
-		<Box
-			{ ...intentStyles }
-			padding={ { inline: 'sm', block: 'xs' } }
-			borderRadius="lg"
-			render={ render }
-			style={ {
-				fontFamily: 'var(--wpds-font-family-body)',
-				fontSize: 'var(--wpds-font-size-sm)',
-				fontWeight: 'var(--wpds-font-weight-regular)',
-				lineHeight: 'var(--wpds-font-line-height-xs)',
-				...props.style,
-			} }
-			ref={ ref }
-		>
-			{ children }
-		</Box>
-	);
+	return element;
 } );
diff --git a/packages/ui/src/badge/style.module.css b/packages/ui/src/badge/style.module.css
new file mode 100644
index 00000000000000..fe339a844c78a6
--- /dev/null
+++ b/packages/ui/src/badge/style.module.css
@@ -0,0 +1,48 @@
+@layer wp-ui-utilities, wp-ui-components, wp-ui-compositions, wp-ui-overrides;
+
+@layer wp-ui-components {
+	.badge {
+		padding-inline: var(--wpds-dimension-padding-sm);
+		padding-block: var(--wpds-dimension-padding-xs);
+		border-radius: var(--wpds-border-radius-lg);
+		font-family: var(--wpds-font-family-body);
+		font-size: var(--wpds-font-size-sm);
+		font-weight: var(--wpds-font-weight-regular);
+		line-height: var(--wpds-font-line-height-xs);
+	}
+
+	.is-high-intent {
+		background-color: var(--wpds-color-bg-surface-error);
+		color: var(--wpds-color-fg-content-error);
+	}
+
+	.is-medium-intent {
+		background-color: var(--wpds-color-bg-surface-warning);
+		color: var(--wpds-color-fg-content-warning);
+	}
+
+	.is-low-intent {
+		background-color: var(--wpds-color-bg-surface-caution);
+		color: var(--wpds-color-fg-content-caution);
+	}
+
+	.is-stable-intent {
+		background-color: var(--wpds-color-bg-surface-success);
+		color: var(--wpds-color-fg-content-success);
+	}
+
+	.is-informational-intent {
+		background-color: var(--wpds-color-bg-surface-info);
+		color: var(--wpds-color-fg-content-info);
+	}
+
+	.is-draft-intent {
+		background-color: var(--wpds-color-bg-surface-neutral-weak);
+		color: var(--wpds-color-fg-content-neutral);
+	}
+
+	.is-none-intent {
+		background-color: var(--wpds-color-bg-surface-neutral);
+		color: var(--wpds-color-fg-content-neutral-weak);
+	}
+}
diff --git a/packages/ui/src/box/box.tsx b/packages/ui/src/box/box.tsx
deleted file mode 100644
index 180fb387645893..00000000000000
--- a/packages/ui/src/box/box.tsx
+++ /dev/null
@@ -1,107 +0,0 @@
-import { useRender, mergeProps } from '@base-ui/react';
-import { forwardRef } from '@wordpress/element';
-import { type BoxProps } from './types';
-
-/**
- * Default render function that renders a div element with the given props.
- */
-const DEFAULT_RENDER = ( props: React.ComponentPropsWithoutRef< 'div' > ) => (
-	<div { ...props } />
-);
-
-/**
- * Capitalizes the first character of a string.
- */
-const capitalize = ( str: string ): string =>
-	str.charAt( 0 ).toUpperCase() + str.slice( 1 );
-
-/**
- * Converts a size token name to a CSS design token property reference (with
- * fallback).
- *
- * @param property The CSS property name.
- * @param value    The size token name.
- * @return A CSS value string with variable references.
- */
-const getSpacingValue = ( property: string, value: string ): string =>
-	`var(--wpds-dimension-${ property }-${ value }, var(--wpds-dimension-${ property }-${ value }))`;
-
-/**
- * Generates CSS styles for properties with optionally directional values,
- * normalizing single values and objects with directional keys for logical
- * properties.
- *
- * @param property The CSS property name from BoxProps.
- * @param value    The property value (single or object with directional keys).
- * @return A CSSProperties object with the computed styles.
- */
-const getDimensionVariantStyles = < T extends keyof BoxProps >(
-	property: T,
-	value: NonNullable< BoxProps[ T ] >
-): React.CSSProperties =>
-	typeof value !== 'object'
-		? { [ property ]: getSpacingValue( property, value ) }
-		: Object.keys( value ).reduce(
-				( result, key ) => ( {
-					...result,
-					[ property + capitalize( key ) ]: getSpacingValue(
-						property,
-						value[ key ]
-					),
-				} ),
-				{} as Record< string, string >
-		  );
-
-/**
- * A low-level visual primitive that provides an interface for applying design
- * token-based customization for background, text, padding, and more.
- */
-export const Box = forwardRef< HTMLDivElement, BoxProps >( function Box(
-	{
-		target = 'surface',
-		backgroundColor,
-		color,
-		padding,
-		borderRadius,
-		borderWidth,
-		borderColor,
-		render = DEFAULT_RENDER,
-		...props
-	},
-	ref
-) {
-	const style: React.CSSProperties = {};
-
-	if ( backgroundColor ) {
-		style.backgroundColor = `var(--wpds-color-bg-${ target }-${ backgroundColor }, var(--wpds-color-bg-surface-${ backgroundColor }))`;
-	}
-
-	if ( color ) {
-		style.color = `var(--wpds-color-fg-${ target }-${ color }, var(--wpds-color-fg-content-${ color }))`;
-	}
-
-	if ( padding ) {
-		Object.assign( style, getDimensionVariantStyles( 'padding', padding ) );
-	}
-
-	if ( borderRadius ) {
-		style.borderRadius = `var(--wpds-border-radius-${ target }-${ borderRadius }, var(--wpds-border-radius-${ borderRadius }))`;
-	}
-
-	if ( borderWidth ) {
-		style.borderWidth = `var(--wpds-border-width-${ target }-${ borderWidth }, var(--wpds-border-width-${ borderWidth }))`;
-		style.borderStyle = 'solid';
-	}
-
-	if ( borderColor ) {
-		style.borderColor = `var(--wpds-color-stroke-${ target }-${ borderColor }, var(--wpds-color-stroke-surface-${ borderColor }))`;
-	}
-
-	const element = useRender( {
-		render,
-		ref,
-		props: mergeProps< 'div' >( props, { style } ),
-	} );
-
-	return element;
-} );
diff --git a/packages/ui/src/box/index.ts b/packages/ui/src/box/index.ts
deleted file mode 100644
index aae32603581ca3..00000000000000
--- a/packages/ui/src/box/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export { Box } from './box';
diff --git a/packages/ui/src/box/stories/index.story.tsx b/packages/ui/src/box/stories/index.story.tsx
deleted file mode 100644
index 0f5614432d8a44..00000000000000
--- a/packages/ui/src/box/stories/index.story.tsx
+++ /dev/null
@@ -1,49 +0,0 @@
-import { type Meta, type StoryObj } from '@storybook/react-vite';
-import { type PaddingSize } from '@wordpress/theme';
-import { Box } from '../box';
-
-const meta: Meta< typeof Box > = {
-	title: 'Design System/Components/Box',
-	component: Box,
-};
-export default meta;
-
-type Story = StoryObj< typeof Box >;
-
-export const Default: Story = {
-	args: {
-		children: 'Box',
-		backgroundColor: 'info',
-		color: 'info',
-		padding: 'sm',
-		borderColor: 'brand',
-		borderRadius: 'md',
-		borderWidth: 'sm',
-	},
-	argTypes: {
-		padding: {
-			control: 'select',
-			options: [
-				'xs',
-				'sm',
-				'md',
-				'lg',
-				'xl',
-				'2xl',
-				'3xl',
-			] satisfies PaddingSize[],
-		},
-	},
-};
-
-export const DirectionalPadding: Story = {
-	...Default,
-	args: {
-		...Default.args,
-		padding: {
-			blockStart: 'sm',
-			inline: 'md',
-			blockEnd: 'lg',
-		},
-	},
-};
diff --git a/packages/ui/src/box/test/box.test.tsx b/packages/ui/src/box/test/box.test.tsx
deleted file mode 100644
index 912dbafdf49005..00000000000000
--- a/packages/ui/src/box/test/box.test.tsx
+++ /dev/null
@@ -1,29 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { createRef } from '@wordpress/element';
-import { Box } from '../box';
-
-describe( 'Box', () => {
-	it( 'forwards ref', () => {
-		const ref = createRef< HTMLDivElement >();
-
-		render( <Box ref={ ref }>Content</Box> );
-
-		expect( ref.current ).toBeInstanceOf( HTMLDivElement );
-	} );
-
-	it( 'merges props', () => {
-		render(
-			<Box backgroundColor="brand" style={ { width: '10px' } }>
-				Content
-			</Box>
-		);
-
-		const box = screen.getByText( 'Content' );
-
-		expect( box ).toHaveStyle( {
-			'background-color':
-				'var(--wpds-color-bg-surface-brand, var(--wpds-color-bg-surface-brand))',
-			width: '10px',
-		} );
-	} );
-} );
diff --git a/packages/ui/src/box/types.ts b/packages/ui/src/box/types.ts
deleted file mode 100644
index 22bae4eb9e1094..00000000000000
--- a/packages/ui/src/box/types.ts
+++ /dev/null
@@ -1,61 +0,0 @@
-import {
-	type PaddingSize,
-	type BorderRadiusSize,
-	type BorderWidthSize,
-	type Target,
-	type SurfaceBackgroundColor,
-	type ContentForegroundColor,
-	type SurfaceStrokeColor,
-} from '@wordpress/theme';
-import { type ComponentProps } from '../utils/types';
-
-type DimensionVariant< T > = {
-	block?: T;
-	blockStart?: T;
-	blockEnd?: T;
-	inline?: T;
-	inlineStart?: T;
-	inlineEnd?: T;
-};
-
-export interface BoxProps extends ComponentProps< 'div' > {
-	/**
-	 * The target rendering element design token grouping to use for the box.
-	 */
-	target?: Target;
-
-	/**
-	 * The surface background design token for box background color.
-	 */
-	backgroundColor?: SurfaceBackgroundColor;
-
-	/**
-	 * The surface foreground design token for box text color.
-	 */
-	color?: ContentForegroundColor;
-
-	/**
-	 * The surface spacing design token or base unit multiplier for box padding.
-	 */
-	padding?: PaddingSize | DimensionVariant< PaddingSize >;
-
-	/**
-	 * The surface border radius design token.
-	 */
-	borderRadius?: BorderRadiusSize;
-
-	/**
-	 * The surface border width design token.
-	 */
-	borderWidth?: BorderWidthSize;
-
-	/**
-	 * The surface border stroke color design token.
-	 */
-	borderColor?: SurfaceStrokeColor;
-
-	/**
-	 * The content to be rendered inside the component.
-	 */
-	children?: React.ReactNode;
-}
diff --git a/packages/ui/src/index.ts b/packages/ui/src/index.ts
index 64c8c05f34ec93..b303bd87834b9d 100644
--- a/packages/ui/src/index.ts
+++ b/packages/ui/src/index.ts
@@ -1,5 +1,4 @@
 export * from './badge';
-export * from './box';
 export * from './button';
 export * from './form/primitives';
 export * from './icon';
diff --git a/packages/ui/src/stack/stories/index.story.tsx b/packages/ui/src/stack/stories/index.story.tsx
index 66ab560c04c314..4dd2019beb93d7 100644
--- a/packages/ui/src/stack/stories/index.story.tsx
+++ b/packages/ui/src/stack/stories/index.story.tsx
@@ -1,6 +1,5 @@
 import type { Meta, StoryObj } from '@storybook/react-vite';
 import { Stack } from '../index';
-import { Box } from '../../box';
 
 const meta: Meta< typeof Stack > = {
 	title: 'Design System/Components/Stack',
@@ -9,9 +8,9 @@ const meta: Meta< typeof Stack > = {
 export default meta;
 
 const DemoBox = ( { variant }: { variant?: 'lg' } ) => (
-	<Box
-		backgroundColor="brand"
+	<div
 		style={ {
+			backgroundColor: 'var(--wpds-color-bg-surface-brand)',
 			width: variant === 'lg' ? '150px' : '100px',
 			height: variant === 'lg' ? '150px' : '100px',
 		} }