The Fakiyska reka (Bulgarian: Факийска река) is a 87 km long river in eastern Bulgaria that flows into Lake Burgas, which drains into the Black Sea.

It initially flows in a deforested valley direction north until the village of Momina Tsarkva, northeast until Fakiya and east until Golyamo Bukovo.

It then enters a deep, narrow and forested valley with many meanders, which separates the Strandzhan ridges of Karatepe to the northwest and Bosna to the southeast.

Downstream of the abandoned village of Rakov Dol the valley widens and downstream of Zidarovo enters the Burgas Plain, where the Fakiyska reka forms a wide alluvial valley.

It borders the basins of the Sredetska reka to the northwest, the Veleka and the Izvorska reka to the southeast, the three flowing into the Black Sea, as well as the basins of the Tundzha and the Maritsa to the southwest that belong to the Aegean Sea drainage.