Sulu (Tausūg: سوگ, Sūg; Chavacano: Provincia de Sūlū; Filipino:Lalawigan ng Sulu) is a Province of the Philippines in the Sulu Archipelago and part of the Autonomous Region in Muslim Mindanao (ARMM).
Its capital is Jolo, Sulu on the island of Jolo. The islands and provinces of Basilan and Tawi-Tawi are also in the Sulu Archipelago but not in the province of Sulu. The province of Sulu is along the southern boundary of the Sulu Sea and the northern boundary of the Celebes Sea.