Sanjak of Segedin or Sanjak of Szeged was an administrative territorial entity of the Ottoman Empire formed in the 16th century. It was located in the Bačka (Bácska) region. Initially, it was part of the Budin Province, but in the 17th century it was included into Eğri Province. The administrative center of the Sanjak of Segedin was Segedin. It was captured by the Habsburg monarchy between 1686-1688, who formally annexed it according to Treaty of Karlowitz in 1699.