Slastyonka (Russian: Сластёнка) is a rural locality (a selo) in Shchuchinsko-Peskovskoye Rural Settlement, Ertilsky District, Voronezh Oblast, Russia.

[3] Slastyonka is located on the Ertil River, 25 km west of Ertil (the district's administrative centre) by road.

Stary Ertil is the nearest rural locality.

This Ertilsky District location article is a stub.

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