Sixteenmile Creek is a tributary of the Missouri River, approximately 45 mi (73 km) long, in western Montana in the United States.

It rises in the Lewis and Clark National Forest in the Crazy Mountains in southeastern Meagher County. It flows generally west, south of the Big Belt Mountains , and southwest, past Maudlow and joins the Missouri 6 mi (9 km) southeast of Toston.

See also

• List of Montana rivers