Andrew Lewis Cooper (April 24, 1898 – June 3, 1941), nicknamed "Lefty", was an American left-handed pitcher in baseball's Negro leagues.

In defiance of a threatened five-year Negro league ban for contract jumping, Cooper joined a 1927 barnstorming team that toured Hawaii and Japan.

Cooper served as manager or player-manager for the Monarchs from 1937 to 1940, leading the team to the pennant three times during those four seasons.

[3] The short fences often allowed Detroit's powerful hitters to provide good run support for Cooper.

[8] Nearing the end of his career, Cooper pitched 17 innings in a playoff game that year versus the Chicago American Giants.

In Black Baseball in Kansas City, Cooper was described as having "more junk than Fred Sanford", but he walked only one batter.

Negro league historian Dick Clark called Cooper the greatest pitcher to play for Detroit, either for the Stars or the Tigers.

By 1927, player pay had been cut and morale was low in the NNL and the Eastern Colored League (ECL).

Cooper and three other Negro league players - Biz Mackey, Rap Dixon and Frank Duncan - decided to test the ban.

They joined a traveling all-star team, the Philadelphia Royal Giants, in a four-month barnstorming tour of Japan.

The next year, he accompanied the Royal Giants to Japan, China, the Philippines and Hawaii for a four-month, 35-game trip.

He left for his home in Waco to rest and recover, leaving Newt Allen as interim manager, but suffered a fatal heart attack on June 3, having never returned to the Monarchs.

[20] In 2014, Cooper made the final ballot for election to the Texas Sports Hall of Fame.