Sandanski (, formerly known as Sveti Vrach, , until 1949) is a town and a recreation centre in south-western Bulgaria, part of Blagoevgrad Province. Named after revolutionary Yane Sandanski, it is situated in a valley at the foot of Pirin Mountains, along the banks of Sandanska Bistritsa River. Sandanski is about 20 km away from Bulgaria-Greece border and 100km away from Aegean sea.