Maurice Joseph "Mickey" McDermott Jr. (April 29, 1929 – August 7, 2003) was an American left-handed pitcher in Major League Baseball.

McDermott started playing first base, his father's position, until his coach at St. Mary's Grammar School noticed that his ball had a natural curve when thrown.

By the time he was playing in the parochial school league for St. Patrick's High, he was averaging twenty strikeouts per game.

McDermott played for the semi-pro Ferrara Trucking Company at the age of 13 against adults and some major league baseball players moonlighting to pick up some extra money.

Joe Cronin, general manager of the Red Sox, did some research and found out McDermott was only 15.

On July 14, 1946, at the age of 17, McDermott threw a no-hitter against the Albany Senators, making him possibly the youngest pitcher to throw a no-hit game in the high minors.

Playing at home against the Utica Blue Sox, McDermott walked Richie Ashburn in the ninth inning.

Under pressure from sports writers, Boston, which was already eleven games out of first place, brought up McDermott to help their ailing pitching staff.

Then Bill Veeck, owner of the triple A Miami Marlins of the International League, signed him to pitch on the same staff as Satchel Paige and Virgil Trucks.

While playing winter ball in Cuba in 1959, McDermott's team was at bat when Fidel Castro led the 26th of July Movement that overthrew the regime of Fulgencio Batista.

Several people on the field and in the stands were shot, including McDermott's teammate and future Cincinnati Reds shortstop Leo Cárdenas.

After pitching in the minor leagues for a while and taking odd jobs to make ends meet, McDermott's second wife, fed up with his alcoholic ways, divorced him.

They ended up representing Tony Armas, Mario Guerrero, Alejandro Peña, Candy Maldonado and Marty Barrett.

He wrote a memoir of his playing (and non-playing) days called A Funny Thing Happened on the Way to Cooperstown, in which he blamed his health problems on his heavy drinking.