İzmirspor is а Turkish football club based in İzmir, Turkey.

The club was founded as Altın Ay on 25 July 1923.

Altın Ay merged with rivals Sakarya and formed İzmirspor on 28 November 1930.

The club's greatest achievement was to become runner-up in the former Turkish Football Championship in 1933.

İzmirspor also has won the İzmir Football League five times.