Henry "Harry" Schaaf (born 29 November 1886) was an American track and field athlete, a member of the Irish American Athletic Club, and a Police Officer in the New York City Police Department. He served as a patrolman from 1912 until his retirement in 1943.
On April 9, 1911, Schaaf was a member of the Irish American Athletic Club 4×440 yard relay team that broke the world record at Celtic Park, Queens, New York and set the first IAAF- recognized world's record for 4×440 yard or 4×400 meter relay race, with a time of 3 minutes and 18.2 seconds. The other members of the world's record-setting team were Harry Gissing, Mel Sheppard and James Rosenberger.
