Jordan Creek is a 99-mile (159 km) tributary of the Owyhee River in the northwestern United States. It generally flows west from near Silver City, Idaho, in the Owyhee Mountains to near Rome in the Oregon High Desert. Major tributaries are Big Boulder, Soda, Louse, Spring, Rock, Meadow, Combination, and Louisa creeks in Idaho and Cow Creek in Oregon. The creek is named for Michael M. Jordan, who led a party that discovered gold along the creek in 1863.