Clement Manly "Lew" Llewellyn (August 1, 1895 – November 27, 1969) was an American baseball player, judge, and lawyer.

He played a single Major League Baseball game with the New York Yankees in 1922.

In 1 career game at the Cleveland Indians on June 18, he had a 0–0 record, with a 0.00 earned run average (ERA), pitching in only one inning.

He played baseball at the University of North Carolina at Chapel Hill where he was a member of Theta Chi fraternity.

This biographical article relating to an American baseball pitcher born in the 1890s is a stub.