Joseph John Lannin (April 23, 1866 – May 15, 1928) was a Québécois and Canadian-born American baseball entrepreneur. it was not known if he had a medical issue or died by suicide. At the time of his death, his estate was valued at $7,000,000. He is interred at the Cemetery of the Holy Rood, Garden City, New York.
Lannin was inducted to the Canadian Baseball Hall of Fame in 2004.