Tatham (September 3, 1854 – September 24, 1939) was an American fencer who competed in the 1904 Summer Olympics.
He was born and died in New York City and worked for his father's lead manufacturing company in Philadelphia.In 1891, Tatham was one of the founders of the AFLA/USFA.Tatham won both the National individual epee title and the Individual men's foil title in 1901 and repeated the epee title in 1902 and 1903.