The Thessaloniki International Film Festival (TIFF) is a film festival held every November in Thessaloniki, Greece. It is organized by the Thessaloniki Film Festival under the auspices of the Greek Ministry of Culture. It features international competition sections, and its program includes tributes to major filmmakers and national cinemas, as well as sidebar events such as masterclasses, exhibitions, live concerts and workshops. In addition to TIFF, the Thessaloniki Film Festival holds the annual Thessaloniki Documentary Festival (TDF) in March.

Thessaloniki, also known as Thessalonica, Saloniki, Salonika, or Salonica, is the second-largest city in Greece, with slightly over one million inhabitants in its metropolitan area, and the capital of the geographic region of Macedonia, the administrative region of Central Macedonia and the Decentralized Administration of Macedonia and Thrace. It is also known in Greek as "η Συμπρωτεύουσα", literally "the co-capital", a reference to its historical status as the Συμβασιλεύουσα or "co-reigning" city of the Byzantine Empire alongside Constantinople.