diff --git a/docs/reference/gtk/building.sgml b/docs/reference/gtk/building.sgml
index a945982280..b7479e7f9e 100644
--- a/docs/reference/gtk/building.sgml
+++ b/docs/reference/gtk/building.sgml
@@ -102,7 +102,7 @@ How to compile GTK+ itself
       is used in a similar fashion for the linker. Finally the
       <envar>PKG_CONFIG_PATH</envar> environment variable contains
       a search path that <command>pkg-config</command> (see below)
-      uses when looking for for file describing how to compile
+      uses when looking for files describing how to compile
       programs using different libraries. If you were installing GTK+
       and it's dependencies into <filename>/opt/gtk</filename>, you
       might want to set these variables as:
diff --git a/gdk/broadway/broadway.js b/gdk/broadway/broadway.js
index 028555dd6f..b134d85faa 100644
--- a/gdk/broadway/broadway.js
+++ b/gdk/broadway/broadway.js
@@ -2401,7 +2401,7 @@ function handleKeyPress(e) {
 
     keysym = getKeysym(ev);
 
-    // Modify the the which attribute in the depressed keys list so
+    // Modify the which attribute in the depressed keys list so
     // that the keyUp event will be able to have the character code
     // translation available.
     if (kdlen > 0) {
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index f7a4531091..b9b2e28b70 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -408,7 +408,7 @@ gdk_window_class_init (GdkWindowClass *klass)
    * @height: the height of the offscreen surface to create
    *
    * The ::create-surface signal is emitted when an offscreen window
-   * needs its surface (re)created, which happens either when the the
+   * needs its surface (re)created, which happens either when the
    * window is first drawn to, or when the window is being
    * resized. The first signal handler that returns a non-%NULL
    * surface will stop any further signal emission, and its surface
diff --git a/gtk/gtkgesturesingle.c b/gtk/gtkgesturesingle.c
index 472ac56ceb..367d99cf7a 100644
--- a/gtk/gtkgesturesingle.c
+++ b/gtk/gtkgesturesingle.c
@@ -20,7 +20,7 @@
 
 /**
  * SECTION:gtkgesturesingle
- * @Short_description: Base class for for mouse/single-touch gestures
+ * @Short_description: Base class for mouse/single-touch gestures
  * @Title: GtkGestureSingle
  *
  * #GtkGestureSingle is a subclass of #GtkGesture, optimized (although