Carlos Noriel Lee (born June 20, 1976 in Aguadulce, Panama) is a left fielder in Major League Baseball who plays for the Houston Astros. He bats and throws right-handed. He is married and has two daughters, Cassandra and Karla and a son, named Karlos. Lee owns and operates cattle ranches in Aguadulce and Houston. His brother, also named Carlos, played professional baseball in the Brewers minor league system. Lee has also been given the nickname of "El Caballo". He may or may not be a vegetarian.

Lee made his major league debut with the Chicago White Sox on May 7, 1999, hitting a home run in his first-ever Major League at-bat. He would remain in the White Sox organization until being traded to the Milwaukee Brewers in exchange for outfielder Scott Podsednik and pitcher Luis Vizcaino.

Lee was the White Sox' starting left fielder for the first six years of his career, with only a few games a season as a designated hitter. He can hit for both average and power. From 2001–02, his batting average slumped to the .260s, but he has returned to exceeding .300, and has a career average of .288. His home run totals increased over the years. Lee was given his nickname "El Caballo", which means "The Horse", by White Sox television announcer Hawk Harrelson.