GAS Kilkis (full name: Gymnastic Athletic Club Kilkis, Greek: Αθλητικός Γυμναστικός Σύλλογος Κιλκίς, Γ.Α.Σ.

It was founded in 1980 and has played in A1 ethniki (first-tier division) many consecutive years.

Few year later it promoted to A1 Ethniki and the 1993–94 season played in the final of the championship.

Overall, GAS Kilkis has played three times in the finals of the championship and ranked in 2nd place, the years 1994, 2000 and 2008.

[2] The previous season, GAS Kilkis, which had been demoted to A2 Ethniki, placed 11th overall.