Lawrence J. Corcoran (August 10, 1859 – October 14, 1891) was an American professional baseball player.

Cap Anson alternated him with pitcher Fred Goldsmith, giving Chicago the first true pitching rotation in professional baseball.

White Stockings catcher Silver Flint, who caught bare-handed, credited Corcoran with being the toughest pitcher to catch and being responsible for several of his misshapen fingers.

[2] Naturally right-handed, Corcoran pitched four innings alternating throwing arms on June 16, 1884, due to the inflammation of his right index finger, making him a rare example of a switch pitcher.

Afflicted with Bright's disease, Corcoran died in Newark, New Jersey, at the age of 32.