diff --git a/packages/main/cypress/specs/Menu.cy.tsx b/packages/main/cypress/specs/Menu.cy.tsx
index a5f81c24b38f..74ca93f6a623 100644
--- a/packages/main/cypress/specs/Menu.cy.tsx
+++ b/packages/main/cypress/specs/Menu.cy.tsx
@@ -1162,4 +1162,155 @@ describe("Menu - getFocusDomRef", () => {
 				expect(menu.getFocusDomRef()).equal(clickedItem.getFocusDomRef());
 			});
 	});
+});
+
+describe("Menu - Submenu Focus Behavior", () => {
+	it("should not move focus when submenu opens via mouse hover", () => {
+		cy.mount(
+			<>
+				<Button id="btnOpen">Open Menu</Button>
+				<Menu opener="btnOpen">
+					<MenuItem text="Parent Item">
+						<MenuItem text="Child Item 1"></MenuItem>
+						<MenuItem text="Child Item 2"></MenuItem>
+					</MenuItem>
+					<MenuItem text="Another Item"></MenuItem>
+				</Menu>
+			</>
+		);
+
+		cy.get("[ui5-menu]")
+			.ui5MenuOpen();
+
+		cy.get("[ui5-menu] > [ui5-menu-item]")
+			.as("items");
+
+		cy.get("@items")
+			.first()
+			.should("be.visible")
+			.as("parentItem");
+
+		// Hover item to open submenu
+		cy.get("@parentItem").realHover();
+
+		cy.get("@parentItem")
+			.shadow()
+			.find("[ui5-responsive-popover]")
+			.should("have.attr", "open");
+
+		// Verify focus not moved to submenu
+		cy.get("@parentItem")
+			.should("be.focused");
+
+		cy.get("[ui5-menu-item] > [ui5-menu-item]")
+			.as("submenuitems");
+
+		cy.get("@submenuitems")
+			.first()
+			.should("be.visible")
+			.as("childItem");
+
+		cy.get("@childItem")
+			.should("not.be.focused");
+	});
+
+	it("should close submenu when hover moves to another item", () => {
+		cy.mount(
+			<>
+				<Button id="btnOpen">Open Menu</Button>
+				<Menu opener="btnOpen">
+					<MenuItem text="Parent Item">
+						<MenuItem text="Child Item 1"></MenuItem>
+						<MenuItem text="Child Item 2"></MenuItem>
+					</MenuItem>
+					<MenuItem text="Another Item"></MenuItem>
+				</Menu>
+			</>
+		);
+
+		cy.get("[ui5-menu]")
+			.ui5MenuOpen();
+
+		cy.get("[ui5-menu] > [ui5-menu-item]")
+			.as("items");
+
+		cy.get("@items")
+			.first()
+			.should("be.visible")
+			.as("parentItem");
+
+		// Hover item to open submenu
+		cy.get("@parentItem").realHover();
+
+		cy.get("@parentItem")
+			.shadow()
+			.find("[ui5-responsive-popover]")
+			.as("submenuPopover");
+			
+		cy.get("@submenuPopover")
+			.should("have.attr", "open");
+
+		// Hover over another top-level item
+		cy.get("@items")
+			.last()
+			.should("be.visible")
+			.as("lastItem");
+			
+		cy.get("@lastItem")
+			.realHover();
+
+		// The original submenu should be closed
+		cy.get("@submenuPopover")
+			.should("not.have.attr", "open");
+	});
+
+	it("should move focus when submenu opens via keyboard", () => {
+		cy.mount(
+			<>
+				<Button id="btnOpen">Open Menu</Button>
+				<Menu opener="btnOpen">
+					<MenuItem text="Parent Item">
+						<MenuItem text="Child Item 1"></MenuItem>
+						<MenuItem text="Child Item 2"></MenuItem>
+					</MenuItem>
+					<MenuItem text="Another Item"></MenuItem>
+				</Menu>
+			</>
+		);
+
+		cy.get("[ui5-menu]")
+			.ui5MenuOpen();
+
+		cy.get("[ui5-menu] > [ui5-menu-item]")
+			.as("items");
+
+		cy.get("@items")
+			.first()
+			.should("be.visible")
+			.as("parentItem");
+
+		// Open submenu with keyboard
+		cy.get("@parentItem")
+			.should("be.focused")
+			.realPress("ArrowRight");
+		cy.get("@parentItem")
+			.shadow()
+			.find("[ui5-responsive-popover]")
+			.should("have.attr", "open");
+
+		// Verify focus is moved to submenu
+		cy.get("@parentItem")
+			.should("not.be.focused");
+
+		cy.get("[ui5-menu-item] > [ui5-menu-item]")
+			.as("submenuitems");
+
+		cy.get("@submenuitems")
+			.first()
+			.should("be.visible")
+			.as("childItem");
+
+		cy.get("@childItem")
+			.should("be.focused");
+	});
 });
\ No newline at end of file
diff --git a/packages/main/src/Menu.ts b/packages/main/src/Menu.ts
index fdb2198e715b..6d978569928c 100644
--- a/packages/main/src/Menu.ts
+++ b/packages/main/src/Menu.ts
@@ -350,7 +350,7 @@ class Menu extends UI5Element {
 		this.open = false;
 	}
 
-	_openItemSubMenu(item: MenuItem) {
+	_openItemSubMenu(item: MenuItem, openedByMouse = false) {
 		clearTimeout(this._timeout);
 
 		if (!item._popover || item._popover.open) {
@@ -364,6 +364,7 @@ class Menu extends UI5Element {
 		item._popover.opener = item;
 		item._popover.open = true;
 		item.selected = true;
+		item._openedByMouse = openedByMouse;
 	}
 
 	_itemMouseOver(e: MouseEvent) {
@@ -412,7 +413,7 @@ class Menu extends UI5Element {
 		this._timeout = setTimeout(() => {
 			this._closeOtherSubMenus(item);
 
-			this._openItemSubMenu(item);
+			this._openItemSubMenu(item, true);
 		}, MENU_OPEN_DELAY);
 	}
 
@@ -454,7 +455,7 @@ class Menu extends UI5Element {
 		}
 
 		if (shouldOpenMenu) {
-			this._openItemSubMenu(item);
+			this._openItemSubMenu(item, false);
 		} else if (isTabNextPrevious) {
 			this._close();
 		}
diff --git a/packages/main/src/MenuItem.ts b/packages/main/src/MenuItem.ts
index f9db130beec8..41ff525fec9c 100644
--- a/packages/main/src/MenuItem.ts
+++ b/packages/main/src/MenuItem.ts
@@ -317,6 +317,7 @@ class MenuItem extends ListItem implements IMenuItem {
 
 	_itemNavigation: ItemNavigation;
 	_shiftPressed: boolean = false;
+	_openedByMouse = false;
 
 	constructor() {
 		super();
@@ -620,7 +621,9 @@ class MenuItem extends ListItem implements IMenuItem {
 	}
 
 	_afterPopoverOpen() {
-		this._allMenuItems[0]?.focus();
+		if (!this._openedByMouse) {
+			this._allMenuItems[0]?.focus();
+		}
 		this.fireDecoratorEvent("open");
 	}
 
@@ -642,6 +645,7 @@ class MenuItem extends ListItem implements IMenuItem {
 	}
 
 	_afterPopoverClose() {
+		this._openedByMouse = false;
 		this.fireDecoratorEvent("close");
 	}