diff --git a/components/dropdown/index.js b/components/dropdown/index.js
index 1aadba4ba9db8..b758b6d9b1449 100644
--- a/components/dropdown/index.js
+++ b/components/dropdown/index.js
@@ -122,7 +122,14 @@ class Dropdown extends Component {
 			this.toggle( true, true );
 		}
 
+		// Consider this key handled, since otherwise the behavior of other
+		// handlers may conflict with intended focus.
 		event.stopPropagation();
+
+		// Prevent scroll on arrow press.
+		if ( event.keyCode === DOWN ) {
+			event.preventDefault();
+		}
 	}
 
 	render() {