Lee Louis Mazzilli, (born March 25, 1955 in Brooklyn, New York), is the current manager of Major League Baseball's Baltimore Orioles. The 2005 baseball season will mark Mazzilli's sophomore season with the Orioles, as well as his sophomore season as a major league manager. Before taking the helm in Baltimore, Mazzilli served as first base coach for the New York Yankees under Manager Joe Torre.

Mazzilli's career as a player was quite respectable. He played for the Yankees, Texas Rangers, Pittsburgh Pirates, and Toronto Blue Jays; but his ten years with the New York Mets marked his longest team commitment.

Mazzilli led the Mets in runs with 82 in 1980. He led Mets in hits with 181 in 1979 and with 162 in 1980. He led Mets in doubles with 31 in 1980. He led Mets in home runs with 16 in 1980. He led Mets in runs batted in with 79 in 1979 and with 76 in 1980. He led Mets in stolen bases with 41 in 1980.

He was selected by Mets organization in the first round (14th pick overall) of the free agent draft on June 5, 1973. He was traded by the Mets to the Rangers in exchange for Ron Darling and Walt Terrell on April 1, 1982. Mazzilli signed with the Mets as a free agent on August 3, 1986, but was claimed by the Blue Jays on waivers on July 31, 1989.

At the end of his career, Mazzilli took up acting, starring as Tony in an off-Broadway production of Tony and Tina's Wedding .