diff --git window.cc window.cc
index 6cde8c2..bdd5093 100644
--- window.cc
+++ window.cc
@@ -522,6 +522,12 @@ void Window::Focus() {
   client->FocusWindow(this);
 }
 
+void Window::Blur() {
+  client::FocusClient* client = client::GetFocusClient(this);
+  DCHECK(client);
+  client->FocusWindow(NULL);
+}
+
 bool Window::HasFocus() const {
   client::FocusClient* client = client::GetFocusClient(this);
   return client && client->GetFocusedWindow() == this;
diff --git window.h window.h
index 5586044..53bfd2e 100644
--- window.h
+++ window.h
@@ -262,8 +262,9 @@ class AURA_EXPORT Window : public ui::LayerDelegate,
   // that has a delegate set).  The toplevel window may be |this|.
   Window* GetToplevelWindow();
 
-  // Claims focus.
+  // Claims or relinquishes the claim to focus.
   void Focus();
+  void Blur();
 
   // Returns true if the Window is currently the focused window.
   bool HasFocus() const;