Simpson Everett Stilwell (August 18, 1850 – February 17, 1903) was a United States Army Scout, Deputy U.S. Marshal, police judge, and U.S. Commissioner in Oklahoma during the American Old West. He served in Major George A. Forsyth's company of scouts when it was besieged during the Battle of Beecher Island by IndianCheyenneChiefRoman Nose and was instrumental in bringing relief to the unit.