Otis Floyd Lamson (September 13, 1876 – December 11, 1956) was an American football player and coach. He served as the head football coach at the University of North Carolina at Chapel Hill in 1907. Prior to his coaching career, Lamson played college football while attending the University of Pennsylvania. He lettered for the Quakers in 1904 and 1905. In 1905, he earned All-American honors from Walter Camp. He was born in Beetown, Wisconsin in 1876.