The Hellenic Basketball Federation (Greek: Ελληνική Ομοσπονδία Καλαθοσφαίρισης, abbreviated as Ε.Ο.Κ.), is a governing body for basketball in Greece. It directs and oversees all of the national basketball teams of Greece. From 1969 to 1992, the E.O.K. oversaw the Greek National Basketball League, before it was taken over by HEBA, starting with the 1992-93 basketball season.