The Yugovska reka (Bulgarian: Юговска река) is a 45 km long river in southern Bulgaria, flowing through Smolyan and Plovdiv Provinces.

[1] The river springs under the name Manastirska reka at an altitude of 1,840 m some 200 m north of the summit of Kurbaneri (1,864 m) in the Prespanski division of the western Rhodope Mountains.

After the Haydushki Polyani resort area it flows in northern direction in a narrow deep valley, which widens only around the town of Laki, Plovdiv Province, the only settlement along its banks.

The river flows into the Chepelarska reka at an altitude of 183 m at the Yugovo Inn on the second class II-86 road Plovdiv–Smolyan–Rudozem.

[2] Its drainage basin covers a territory of 332 km2,[1] or 32.9% of the Chepelarska reka's total.