The Greek B Basket League, or Greek B Basketball League, is a national basketball league in Greece. It is also known as the Second National Championship, B National Championship, Second National League, B National League, Third Division, and in Greek,. It is organized by the Hellenic Basketball Federation (E.O.K.).

Milon B.C. or Milonas B.C. is a professional basketball team, based in Nea Smyrni, Athens, Greece. It is a part of the multisport club AONS Milon. The club's home arena is the Milon Indoor Hall, which is also located in Nea Smyrni. The team's colours are green and black.For the 2023-2024 season,the club is competing in the Greek A2 Basket League