Samuel Stienneck Willaman (April 4, 1891 – August 18, 1935) was an American football player and coach. He served as the head coach at Iowa State University (1922–1925), Ohio State University (1929–1933), and Western Reserve University (1934), compliling a career college football record of 47–26–9. At Iowa State, Willaman integrated the team by playing Jack Trice.