Peristeri B.C., or Peristeri Athens B.C. is a Greek professional basketball club that is located in Peristeri, Greece, which is both a city and a suburb in the western part of the Athens agglomeration. The club's full name is Gymnastikos Syllogos Peristeriou K.A.E.. It is a part of the G.S. Peristeri multi-sports club. The club was founded on October 22, 1971.

Peristeri is a city and a suburban municipality in the western part of the Athens agglomeration, Greece. With 133,630 inhabitants, it is the seventh-largest municipality and city of Greece by population.