Mustapha Rabah Madjer was born on 15 December 1958 in Hussein Dey, Algiers. He is a retired Algerian footballer.
He reached stardom as an F.C. Porto player during the 1980s and is widely regarded as a skilled striker.
Madjer started his European career in 1983–84, moving to RCF Paris from NA Hussein Dey. He stayed there during one and a half seasons, finishing the 1984–85 campaign with another French side, Tours FC.
One of the most prolific Algerian internationals in number of games and goals, Madjer played in two World Cups with his national team, helping it to its first ever participation in 1982. Having taken up coaching immediately after retiring, he managed several clubs, and also had several spells with the Algerian team.
Madjer scored his most famous goals in Algeria's 2–1 win over Germany in the 1982 World Cup, when he opened the score in the 53rd minute and in 1987, when his goal helped Porto FC go on to win the European Champion Clubs' Cup (today’s UEFA Champions League).