Kostin Dol (Macedonian: Костин Дол) is a village in the municipality of Kočani, North Macedonia.

Toponyms stemming from the name Arnaut, an Ottoman rendering for Albanians, have been found in the village, such as Arnautska Kuќа, the name of a field and Arnautska Žižnica, ruins of an old settlement.

[1] According to the 2002 census, the village had a total of 20 inhabitants.

[2] Ethnic groups in the village include:[2]

This Kočani location article is a stub.