The Thessaloniki International Documentary Festival (TIDF) is an annual event held in Thessaloniki, Greece, dedicated to the art of documentary filmmaking. Established in 1999, it is recognized as one of Europe's and the world's leading documentary festivals. Since 2018, TIDF has been an Oscars® documentary feature qualifying festival. Organized by the Thessaloniki Film Festival, the TIDF features various competition sections, including International, Newcomers, Film Forward, and Virtual Reality, alongside an Agora for film professionals.