Karşıyaka is a Turkish sports club located in Karşıyaka, Izmir. The team was founded on November 1, 1912 in Karşıyaka. The "SK" refers to the "sports club", as this club has 8 other sports branches on-going basketball, volleyball, handball, tennis, swimming, sailing, billiards and bowling. Club's football team is currently plays in the Turkish First League, basketball team is currently plays in the Turkish Basketball League and women's volleyball team is currently plays in the Turkish Women's Second League.
Karşıyaka have a fierce rivalry with Göztepe; the two İzmir teams are collectively known as the Izmir Derby. Other rivalries are against Bucaspor and Altay.
Karşıyaka supporters like to call the club "The 35 and a half", to differentiate themselves from Izmir that license plate number is 35.
As of 13 December, 2014. Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.
- Turkish Premier Division: 1958–64, 1966–67, 1970–72, 1987–91, 1992–94, 1995–96
- Turkish First Division: 1964–66, 1967–70, 1972–73, 1980–87, 1991–92, 1994–95, 1996–01, 2003–present
- Turkish Second Division: 1973–80, 2001–03