Marie Ferdinand-Harris (born October 13, 1978) is an American professional basketball player most recently for the Phoenix Mercury in the Women's National Basketball Association.

Ferdinand-Harris was born in Miami, Florida, and is of Haitian descent.

As a senior, Ferdinand averaged 24.0 points, seven rebounds, 5.4 assists, and 2 steals per game, and was named the 1995 Player of the Year in Florida.

Ferdinand attended Louisiana State University and played for the LSU Lady Tigers basketball team. She competed with USA Basketball as a member of the 2000 Jones Cup Team that won the Gold in Taipei.

Ferdinand was selected by the Utah Starzz 8th overall in the 1st round of the 2001 WNBA draft. For her career, Ferdinand averages 13.1 ppg, 3.4 rpg, 2.4 apg, and 1.56 steals per game. She is a two time WNBA All-Star, playing on the 2002 and 2003 teams.

Ferdinand missed the entire 2006 WNBA season after giving birth to her first child.

On February 22, 2008, Ferdinand-Harris signed with the Los Angeles Sparks.

On January 13, 2006, the San Antonio Express-News reported that Ferdinand was expecting a baby in June, and was planning to return to the San Antonio Silver Stars by July 2006, after the WNBA All-Star Game.^{[citation needed]}