Gymnastic Athletic Club Ialysos Rhodes 1948 (Greek: Γυμναστικός Αθλητικός Σύλλογος Ιάλυσος Ρόδου 1948) is a Greek professional football club based in Ialysos, Dodecanese, Greece.

GAS Ialyssos was officially established in 1948, during which the Dodecanese arrived in the Kingdom of Greece.

In the 2014–15 season, Ialysos won the First Division of the USSR event which gave him the right to compete in the EPS Championships.

2015, taking part in the 11th Group where it took the first place, thus gaining promotion to the 3rd National Amateur category.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.