Socialist Workers' Federation

Official logotype of the Socialist Workers' Federation.
Socialist Workers' Federation (Φεντερασιόν in Greek). The official application with which the part is asking from the Greek court authority for recognition in 1916.

The Socialist Workers' Federation (Greek: Σοσιαλιστική Εργατική Ομοσπονδία, romanized: Sosialistikí Ergatikí Omospondía, French: Fédération Socialiste Ouvrière, Ladino: Federacion Socialista Laboradera, Turkish: Selanik Sosyalist İşçi Federasyonu), was a socialist organisation in the Salonica Vilayet of the Ottoman Empire (present-day Thessaloniki), led by Avraam Benaroya. It was an attempt at union of different nationalities' workers in Salonica within a single labor movement.