diff --git a/common/changes/office-ui-fabric-react/jspurlin-FocusTrapZoneAddKeyDownHandler_2018-04-07-01-29.json b/common/changes/office-ui-fabric-react/jspurlin-FocusTrapZoneAddKeyDownHandler_2018-04-07-01-29.json
new file mode 100644
index 00000000000000..a9371c212df0c8
--- /dev/null
+++ b/common/changes/office-ui-fabric-react/jspurlin-FocusTrapZoneAddKeyDownHandler_2018-04-07-01-29.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "office-ui-fabric-react",
+      "comment": "FocusTrapZone: Add KeyDown callback (in line with FocusZone)",
+      "type": "minor"
+    }
+  ],
+  "packageName": "office-ui-fabric-react",
+  "email": "jspurlin@microsoft.com"
+}
\ No newline at end of file
diff --git a/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.tsx b/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.tsx
index eb4710d22809e1..3319557f02d336 100644
--- a/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.tsx
+++ b/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.tsx
@@ -121,6 +121,15 @@ export class FocusTrapZone extends BaseComponent<IFocusTrapZoneProps, {}> implem
   }
 
   private _onKeyboardHandler = (ev: React.KeyboardEvent<HTMLElement>): void => {
+    if (this.props.onKeyDown) {
+      this.props.onKeyDown(ev);
+    }
+
+    // If the default has been prevented, do not process keyboard events.
+    if (ev.isDefaultPrevented()) {
+      return;
+    }
+
     if (ev.which !== KeyCodes.tab) {
       return;
     }
diff --git a/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.types.ts b/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.types.ts
index 4c9037b08a054b..5ef3c478173da5 100644
--- a/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.types.ts
+++ b/packages/office-ui-fabric-react/src/components/FocusTrapZone/FocusTrapZone.types.ts
@@ -53,4 +53,9 @@ export interface IFocusTrapZoneProps extends React.HTMLAttributes<HTMLDivElement
    * @default false
    */
   disableFirstFocus?: boolean;
+
+  /**
+   * Optional, onKeyDown event handler
+   */
+  onKeyDown?: (ev: React.KeyboardEvent<HTMLElement>) => void;
 }