Derrek Leon Lee (born September 6, 1975), nicknamed "D-Lee", is an American former professional baseball first baseman.

Lee played with the San Diego Padres, Florida Marlins, Chicago Cubs, Atlanta Braves, Baltimore Orioles and Pittsburgh Pirates of Major League Baseball (MLB).

Lee won his first Gold Glove during the 2003 championship season and his spectacular grab and unassisted putout on a hard hit Hideki Matsui one-hop line drive snuffed out a Yankees rally and ended Game 5 of the World Series with a Marlins victory.

In 2005, Lee had a career first half of the season, with an MLB-leading .376 batting average, 72 RBIs, and a tie for the major league lead in home runs with 27.

He broke his wrist less than two weeks later, in a collision involving baserunner Rafael Furcal, and he missed 59 games due to the injury.

[2] On August 18, 2010, Lee, with his approval, was traded to the Atlanta Braves for minor league pitching prospects Robinson Lopez, Tyrelle Harris, and Jeffrey Lorick.

On July 30, 2011, Lee was traded to the Pirates for minor league Class A first baseman Aaron Baker and cash considerations.

He was hit by a pitch and broke a bone in his left wrist on August 3, and missed most of the next month, but then finished the season productively as the Pittsburgh first baseman.

In September 2006, Lee's three-year-old daughter Jada was diagnosed with Leber's congenital amaurosis, a rare genetic disease resulting in loss of vision.

Lee and Boston Celtics co-owner and CEO Wyc Grousbeck with the University of Iowa established Project 3000 in an effort to eradicate the disease, which affects both their families.

Lee agreed to the brief appearance because the producers of ER aired an episode in January 2008 that deals with Leber's congenital amaurosis.

[6] The 1st Touch Foundation was established in 2005 by Lee and his wife as a vehicle to encourage and support the educational aspirations of the community's young people.