diff --git a/bundles/org.eclipse.ui.navigator/plugin.xml b/bundles/org.eclipse.ui.navigator/plugin.xml
index af55b54c8108..f99ac6e37865 100644
--- a/bundles/org.eclipse.ui.navigator/plugin.xml
+++ b/bundles/org.eclipse.ui.navigator/plugin.xml
@@ -13,5 +13,16 @@
             id="org.eclipse.ui.navigator.PluginDropAction">
       </action>
    </extension> 
-   
+   <extension
+         point="org.eclipse.ui.handlers">
+	  <handler
+	        commandId="org.eclipse.ui.edit.selectAll"
+	        class="org.eclipse.ui.navigator.CommonNavigatorSelectAllHandler">
+	     <activeWhen>
+	         <with variable="activePartId">
+	            <equals value="org.eclipse.ui.navigator.ProjectExplorer"/>
+	         </with>
+	     </activeWhen>
+	  </handler>
+   </extension>   
 </plugin>
diff --git a/bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonNavigatorSelectAllHandler.java b/bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonNavigatorSelectAllHandler.java
new file mode 100644
index 000000000000..a103fb881d2d
--- /dev/null
+++ b/bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonNavigatorSelectAllHandler.java
@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * Copyright (c) 2003, 2026 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.navigator;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+/**
+ * CommonNavigatorSelectAllHandler is the handler for the select all action.
+ *
+ * @since 3.14
+ *
+ */
+public class CommonNavigatorSelectAllHandler extends AbstractHandler {
+	@Override
+	public Object execute(ExecutionEvent event) {
+		IWorkbenchPart part = HandlerUtil.getActivePart(event);
+		if (part instanceof CommonNavigator navigator) {
+			navigator.getCommonViewer().getTree().selectAll();
+		}
+		return null;
+	}
+}