John H. Mahan (July 22, 1898 – September 2, 1955) was an American track and field athlete who competed in the 1920 Summer Olympics.
He was born in Gainesville, Texas.
[1] Mahan a fullback and kicker on the national champion 1919 Texas A&M Aggies football team under head coach Dana X.
[2] In 1920, he finished twelfth in the javelin throw competition.
This biographical article about an American javelin thrower is a stub.