Surigao del Sur (Tagalog: Timog Surigao; Cebuano: Habagatang Surigao; Surigaonon/Tandaganon: Probinsya nan Surigao del Sur) is a province in the Philippines located in the Caraga region in Mindanao. Its capital is Tandag City. Surigao del Sur is located at the eastern coast of Mindanao and faces the Philippine Sea.