Otis Floyd Lamson (September 13, 1876 – December 11, 1956) was an American football player and coach, and also a surgeon.^[1]

Lamson was born in Beetown, Wisconsin, in 1876.^[2]

Lamson 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. In 1906, Lamson was hired by the Massillon Tigers to play for the team in the "Ohio League" championship. During that two-game series, a betting scandal involving the Tigers and their rivals, the Canton Bulldogs, arose.

Lamson graduated from the University of Pennsylvania Medical School in 1907, after which he practiced medicine in Seattle for 41 years, until his retirement in 1952.^[1] He was one of the best-known surgeons in the western United States.^[1][3] After his internship at Mercy Hospital in Denver, he received a fellowship to work at the Mayo Clinic. He then served at Doctors Hospital and Columbus Hospital in Seattle.^[1] Lamson also served as the president of the North Pacific Surgical Association,^[1] and he co-founded the Pacific Coast Surgical Association.^[4] His professional interests included the treatment of achalasia.^[5]