† Appearances (Goals).

Justin Mapp (born October 18, 1984 in Brandon, Mississippi) is an American soccer player who currently plays for Chicago Fire in Major League Soccer.

Mapp graduated from the Bradenton Academy in 2001 and signed with MLS as a Project-40 player. He was drafted by D.C. United with the fourth overall pick in the 2002 MLS SuperDraft, but played only 28 minutes for DC in his first year as a pro. Chicago Fire acquired Mapp for Dema Kovalenko before the 2003 season, and he has been an important player in the squad since, helping them to the 2003 US Open Cup. In two seasons with the Fire, Mapp scored six goals and added seven assists.