Workers and Peasants Socialist Party of Turkey

The Turkish Workers and Peasants Socialist Party (Turkish: Türkiye İşçi ve Çiftçi Sosyalist Fırkası, TİÇSF) was a socialist party founded in Istanbul on 22 September 1919. Şefik Hüsnü, Ethem Nejat Ahmet Akif, Sadrettin Celal, Nafi Atuğ Kansu, Cevat Cevdet and Namık İsmail were prominent members. When Istanbul was militarily occupied by Britain and France the party suspended its activities.

Although many members fled, some remained to set up the Türkiye Komünist Firkasi (TKF) which became a formal organisation in March 1920.

Originally the TİÇSF gave support to Kemal Atatürk. They attended the congress held in Baku on September 10, 1920, where the pro-Bolshevik Communist Party of Turkey was established.