Karşıyaka S.K.

Karşıyaka
Full nameKarşıyaka Spor Kulübü
Nickname(s)Kaf Kaf, Kaf Sin Kaf, The 35 and half
Founded1 November 1912 (1912-11-01)
GroundAlsancak Mustafa Denizli Stadium
Capacity15,000
Chairmanİlker Mehmet Ergüllü
ManagerAhmet Yıldırım
LeagueTFF Third League
2024-25TFF Third League , Group 1, 2nd
Websitehttp://www.ksk.org.tr/

Karşıyaka Spor Kulübü (Turkish for Karşıyaka Sports Club), better known as simply Karşıyaka, is a Turkish sports club located in Karşıyaka, İzmir. Founded in 1912, they are İzmir's oldest club. Like others in Turkey, the "SK" suffix refers to the establishment being a sports club, as, besides football, the club has sports branches in basketball, volleyball, handball, tennis, swimming, sailing, billiards, and bowling. The club's football team currently competes in the TFF Third League, the fourth tier of the Turkish football league system. The basketball team currently competes in the Turkish Basketball League and the women's volleyball team in the Turkish Women's Second League.

Karşıyaka has a very large fanbase in Northern İzmir, and have a fierce rivalry with Göztepe; matches between the two teams are known as the İzmir Derby. Other rivalries are with Altay and Bucaspor.