State Highway 11 in the U.S. state of Colorado is an extremely short state highway.

The route connects U.S. Route 138 in Julesburg to the Nebraska border, totaling approximately a mile. No corresponding highway in Nebraska connects with State Highway 11, but the road that does eventually becomes Nebraska Highway 27 after crossing Interstate 80.

The route was established around 1971, before the route number was used in various locations around the state. Since the year it was established, the routing has not been changed, and has always connected US 138 to the Nebraska border.

The entire route is in Sedgwick County.