John Patrick Parnell Cahill
- Bats Right, Throws Right
- Weight 168 lb.
- Debut May 31, 1884
- Final Game August 9, 1887
- Born April 30, 1865 in San Francisco, CA USA
- Died October 31, 1901 in Pleasanton, CA USA
John "Patsy" Cahill is best remembered as the person who might have been the inspiration for Ernest Thayer's immortal poem Casey at the Bat. According to some researchers, Thayer apparently saw a game in Stockton in which Cahill appeared after his major league career was over, and various factors lead the researchers to think that Thayer might have modeled Casey after Cahill.
In the majors, Cahill wasn't much of a hitter, and wasn't much of a pitcher, and was a below-average fielder, but he managed to last long enough to play over 250 games in the majors over three years. He played outfield, infield, and also pitched.
Also see Cahill baseball card.