diff --git c/config.def.h w/config.def.h
index 1a9ab69..1f69eef 100644
--- c/config.def.h
+++ w/config.def.h
@@ -91,6 +91,8 @@ static const Key keys[] = {
 	{ MODKEY|ShiftMask,             XK_Return, zoom,           {0} },
 	{ MODKEY,                       XK_Tab,    view,           {0} },
 	{ MODKEY|ShiftMask,             XK_c,      killclient,     {0} },
+	{ MODKEY|ControlMask,           XK_c,      killclient,     {.ui = 1} },  // kill unselect
+	{ MODKEY|ShiftMask|ControlMask, XK_c,      killclient,     {.ui = 2} },  // killall
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} }, /* tatami */
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} }, /* floating */
 	{ MODKEY|ShiftMask,             XK_t,      setlayout,      {.v = &layouts[2]} }, /* tile */
diff --git c/dwm.c w/dwm.c
index 7e78693..d789241 100644
--- c/dwm.c
+++ w/dwm.c
@@ -189,6 +189,7 @@ static void grabbuttons(Client *c, int focused);
 static void grabkeys(void);
 static void incnmaster(const Arg *arg);
 static void keypress(XEvent *e);
+static void killthis(Client *c);
 static void killclient(const Arg *arg);
 static void manage(Window w, XWindowAttributes *wa);
 static void mappingnotify(XEvent *e);
@@ -1128,21 +1129,38 @@ keypress(XEvent *e)
 }
 
 void
-killclient(const Arg *arg)
-{
-	if (!selmon->sel)
-		return;
-	if (!sendevent(selmon->sel, wmatom[WMDelete])) {
+killthis(Client *c) {
+	if (!sendevent(c, wmatom[WMDelete])) {
 		XGrabServer(dpy);
 		XSetErrorHandler(xerrordummy);
 		XSetCloseDownMode(dpy, DestroyAll);
-		XKillClient(dpy, selmon->sel->win);
+		XKillClient(dpy, c->win);
 		XSync(dpy, False);
 		XSetErrorHandler(xerror);
 		XUngrabServer(dpy);
 	}
 }
 
+void
+killclient(const Arg *arg)
+{
+    Client *c;
+
+	if (!selmon->sel)
+		return;
+
+    if (!arg->ui || arg->ui == 0) {
+        killthis(selmon->sel);
+        return;
+    }
+
+    for (c = selmon->clients; c; c = c->next) {
+        if (!ISVISIBLE(c) || (arg->ui == 1 && c == selmon->sel))
+            continue;
+        killthis(c);
+    }
+}
+
 void
 manage(Window w, XWindowAttributes *wa)
 {