The Provisional Government of Western Thrace (Ottoman Turkish: غربی تراقیا حكومت موقته‌سی - Garbi Trakya Hükûmet-i Muvakkatesi, , Prosorini Kyvernisi Dytikis Thrakis, ), later renamed to Independent Government of Western Thrace (Ottoman Turkish: غربی تراقیا حكومت مستقله‌سی - Garbi Trakya Hükûmet-i Müstakilesi, , Aftonomi Kyvernisi Dytikis Thrakis), was a small, short-lived unrecognized republic established in Western Thrace from August 31 to October 25, 1913. It encompassed the area surrounded by the rivers Maritsa (Evros) in the east, Mesta (Nestos) in the west, the Rhodope Mountains in the north and the Aegean Sea in the south. Its total territory was c. 8.600 km².