diff --git a/share/functions/__fish_cancel_commandline.fish b/share/functions/__fish_cancel_commandline.fish
new file mode 100644
index 000000000..fb378f250
--- /dev/null
+++ b/share/functions/__fish_cancel_commandline.fish
@@ -0,0 +1,19 @@
+# This is meant to be bound to something like \cC.
+function __fish_cancel_commandline
+    set -l cmd (commandline)
+    if test -n "$cmd"
+        commandline -C 1000000
+        # TODO: Switch from using tput and standout mode to `set_color` when themes have been
+        # augmented to include support for background colors or has support for standout/reverse
+        # mode.
+        #
+        # Set reverse fg/bg color mode, output ^C, restore normal mode, clear to EOL (to erase any
+        # autosuggestion).
+        echo (tput smso)"^C"(tput rmso)(tput el)
+        for i in (seq (commandline -L))
+            echo ""
+        end
+        commandline ""
+        commandline -f repaint
+    end
+end