EOK

EOK may refer to:


 * Aero K, ICAO airline code
 * Entrepreneurs of Knoxville, an American fraternal service organization
 * Estonian Olympic Committee (Estonian: Eesti Olümpiakomitee)
 * Hellenic Basketball Federation (Greek: Ελληνική Ομοσπονδία Καλαθοσφαίρισης), the governing body for basketball in Greece
 * Keokuk Municipal Airport, in Iowa
 * National Organization of Crete (Greek: Εθνική Οργάνωση Κρήτης), a World War II era resistance organization