Ionikos Nikaias B.C. is a Greek professional basketball club that is located in Nikaia, a suburban town within the Piraeus, agglomeration, which in turn is also a part of the Athens agglomeration. The club was founded in 1965. It is a part of the A.O. Ionikos Nikaias multi-sports club. The team's colors are white and blue. The team currently plays in the Greek Elite League, the second-tier level in Greek basketball.

Nikaia, known before 1940 as Kokkinia, is a town and a suburb of the Piraeus agglomeration, in the southwestern part of the Athens urban area, Greece. Since the 2011 local government reform it is part of the municipality Nikaia-Agios Ioannis Rentis in the regional unit of Piraeus, and it is the seat and a municipal unit of the municipality.