John Henry (March 9, 1975 – October 8, 2007) was an American champion Thoroughbred racehorse. He was sired by Ole Bob Bowers (by Prince Blessed) out of Once Double (by Double Jay). John Henry had 39 wins with $6,591,860 in earnings, was twice voted the Eclipse Award for Horse of the Year, and was listed as #23 on Blood Horse magazine's Top 100 U.S. Racehorses of the 20th Century.