Bogoyna is a village in Tran Municipality in Pernik Province, western Bulgaria. The village located next to the border with Serbia. It was divided by the Treaty of Neuilly-sur-Seine between Bulgaria and Serbia. The Serbian part of the village is called Petačinci.

42°52′22″N 22°39′38″E / 42.87278°N 22.66056°E / 42.87278; 22.66056