Patrick O'Sullivan Hehir was an Australian cycling champion. He participated in the 1912 UCI Track Cycling World Championships at the Newark Velodrome. Hehir won the American Derby event in 1912.[1] He also won the Six Days of Buffalo in 1913 with Peter Drobach.[2] In 1910, Frank L. Kramer beat Hehir in the one-mile open professional event.[3]