diff --git a/src/controls/templates/OverlaySheet.qml b/src/controls/templates/OverlaySheet.qml
--- a/src/controls/templates/OverlaySheet.qml
+++ b/src/controls/templates/OverlaySheet.qml
@@ -109,6 +109,13 @@
      */
     property Item background
 
+    /**
+     * showCloseButton: bool
+     * whether to show the close button in the top-right corner
+     * @since 5.44
+     */
+    property bool showCloseButton: true
+
     property Item parent
 
 
@@ -294,7 +301,7 @@
                 top: headerItem.top
             }
             z: 3
-            visible: !Settings.isMobile
+            visible: !Settings.isMobile && showCloseButton
             width: Units.iconSizes.smallMedium
             height: width
             source: "dialog-close"