ClubLocationLeagueTierFounded
SC Amersfoort—Dissolved 1982—1973
SGV Freiberg—Regionalliga Südwest—1973
SU Semriach—Unterliga Mitte - Steiermark—1973
Saint-Brice——1973
Samarra—Iraqi Premier Division League—1973
Santos-AP—Campeonato Amapaense - 1ª Divisão—1973
Sassari Latte Dolce—Serie D - Girone G—1973Schloß Neuhaus—Dissolved 1985—1973
Seaham Red Star—Northern League - Division One—1973
Seattle Sounders [NASL]—Dissolved 1983—1973
Sirijus—Dissolved 1995—1973
Sloboda Tužno—1. ŽNL Varaždinska—1973
Sokol Ovčáry—III. Třída - Okresu Mělník—1973Stanford Cardinal—NCAA Division I—1973