The Vishteritsa (Bulgarian: Вищерица) is a 24 km-long river in southern Bulgaria, a right tributary of the Kanina, itself a left tributary of the river Mesta of the Aegean Sea drainage.

[1] The river takes its source at an altitude of 1,586 m at 1.7 km northwest of the summit of Karakaia (1,761 m) in the Dabrash ridge of the western Rhodope Mountains.

It flows in direction south-southeast in a relatively shallow and heavily forested valley.

The river flows entirely in Blagoevgrad Province, in the municipalities of Bansko and Garmen.

Part of the water of the Vishteritsa, along with those of the Kanina, are diverted via seven derivations and a tunnel under the Dabrash ridge to the upper course of the river Dospat and from there to the Dospat Reservoir, which form the highest level of the Dospat–Vacha Hydropower Cascade (500.2 MW).