diff --git a/packages/main/src/ComboBox.ts b/packages/main/src/ComboBox.ts
index af122d5e4fee..af4de5b0d575 100644
--- a/packages/main/src/ComboBox.ts
+++ b/packages/main/src/ComboBox.ts
@@ -89,6 +89,7 @@ import "./ComboBoxItemGroup.js";
 // eslint-disable-next-line
 import { isInstanceOfComboBoxItemGroup } from "./ComboBoxItemGroup.js";
 import type ComboBoxFilter from "./types/ComboBoxFilter.js";
+import type PopoverHorizontalAlign from "./types/PopoverHorizontalAlign.js";
 import type Input from "./Input.js";
 import type { InputEventDetail } from "./Input.js";
 import type { ListItemBaseClickEventDetail } from "./ListItemBase.js";
@@ -401,6 +402,15 @@ class ComboBox extends UI5Element implements IFormInputElement {
 	@property({ type: Boolean })
 	showClearIcon = false;
 
+	/**
+	 * Determines the horizontal alignment of the component's dropdown menu relative to the component.
+	 * @default "Start"
+	 * @public
+	 * @since 2.26.0
+	 */
+	@property()
+	horizontalAlign: `${PopoverHorizontalAlign}` = "Start";
+
 	/**
 	 * Indicates whether the input is focused
 	 * @private
diff --git a/packages/main/src/ComboBoxPopoverTemplate.tsx b/packages/main/src/ComboBoxPopoverTemplate.tsx
index 8373f4ced8b5..a50ab1b5f60c 100644
--- a/packages/main/src/ComboBoxPopoverTemplate.tsx
+++ b/packages/main/src/ComboBoxPopoverTemplate.tsx
@@ -25,7 +25,7 @@ export default function ComboBoxPopoverTemplate(this: ComboBox) {
 				preventFocusRestore={true}
 				preventInitialFocus={true}
 				placement="Bottom"
-				horizontalAlign="Start"
+				horizontalAlign={this.horizontalAlign}
 				accessibleName={this._popupLabel}
 				onBeforeOpen={this._beforeOpenPopover}
 				onOpen={this._afterOpenPopover}
diff --git a/packages/main/test/pages/ComboBox.html b/packages/main/test/pages/ComboBox.html
index dae7010c1efc..7490d0d8ef41 100644
--- a/packages/main/test/pages/ComboBox.html
+++ b/packages/main/test/pages/ComboBox.html
@@ -921,6 +921,72 @@ <h3>Newline Normalization Test</h3>
 		</script>
 	</div>
 
+	<div class="demo-section" style="padding: 30px; background: #f5f5f5; border: 3px solid #0854a0; border-radius: 8px; margin: 20px 0;">
+		<h3 style="color: #0854a0; margin-top: 0;">Horizontal Align Property</h3>
+		<p>Control the horizontal alignment of the dropdown menu relative to the ComboBox.</p>
+		<br />
+
+		<div style="display: flex; justify-content: space-between; gap: 20px; margin-bottom: 40px;">
+			<div style="flex: 1;">
+				<ui5-label>Start (default) - Left side:</ui5-label>
+				<br />
+				<ui5-combobox id="align-start" horizontal-align="Start" style="width: 200px;">
+					<ui5-cb-item text="Algeria"></ui5-cb-item>
+					<ui5-cb-item text="Argentina"></ui5-cb-item>
+					<ui5-cb-item text="Australia"></ui5-cb-item>
+					<ui5-cb-item text="Very long text that makes popover wider than the ComboBox"></ui5-cb-item>
+					<ui5-cb-item text="Austria"></ui5-cb-item>
+					<ui5-cb-item text="Bahrain"></ui5-cb-item>
+					<ui5-cb-item text="Belgium"></ui5-cb-item>
+				</ui5-combobox>
+			</div>
+
+			<div style="flex: 1; display: flex; flex-direction: column; align-items: center;">
+				<ui5-label>Center - Middle:</ui5-label>
+				<br />
+				<ui5-combobox id="align-center" horizontal-align="Center" style="width: 200px;">
+					<ui5-cb-item text="Algeria"></ui5-cb-item>
+					<ui5-cb-item text="Argentina"></ui5-cb-item>
+					<ui5-cb-item text="Australia"></ui5-cb-item>
+					<ui5-cb-item text="Very long text that makes popover wider than the ComboBox"></ui5-cb-item>
+					<ui5-cb-item text="Austria"></ui5-cb-item>
+					<ui5-cb-item text="Bahrain"></ui5-cb-item>
+					<ui5-cb-item text="Belgium"></ui5-cb-item>
+				</ui5-combobox>
+			</div>
+
+			<div style="flex: 1; display: flex; flex-direction: column; align-items: flex-end;">
+				<ui5-label>End - Right side:</ui5-label>
+				<br />
+				<ui5-combobox id="align-end" horizontal-align="End" style="width: 200px;">
+					<ui5-cb-item text="Algeria"></ui5-cb-item>
+					<ui5-cb-item text="Argentina"></ui5-cb-item>
+					<ui5-cb-item text="Australia"></ui5-cb-item>
+					<ui5-cb-item text="Very long text that makes popover wider than the ComboBox"></ui5-cb-item>
+					<ui5-cb-item text="Austria"></ui5-cb-item>
+					<ui5-cb-item text="Bahrain"></ui5-cb-item>
+					<ui5-cb-item text="Belgium"></ui5-cb-item>
+				</ui5-combobox>
+			</div>
+		</div>
+
+		<div style="display: flex; justify-content: center;">
+			<div>
+				<ui5-label>Stretch - Matches ComboBox width:</ui5-label>
+				<br />
+				<ui5-combobox id="align-stretch" horizontal-align="Stretch" style="width: 200px;">
+					<ui5-cb-item text="Algeria"></ui5-cb-item>
+					<ui5-cb-item text="Argentina"></ui5-cb-item>
+					<ui5-cb-item text="Australia"></ui5-cb-item>
+					<ui5-cb-item text="Very long text that makes popover wider than the ComboBox"></ui5-cb-item>
+					<ui5-cb-item text="Austria"></ui5-cb-item>
+					<ui5-cb-item text="Bahrain"></ui5-cb-item>
+					<ui5-cb-item text="Belgium"></ui5-cb-item>
+				</ui5-combobox>
+			</div>
+		</div>
+	</div>
+
 </body>
 
 </html>