Tre Volost (Russian: волость Тре) was a territorial division (a volost) of the Novgorod Republic.

It was first mentioned in a 1265 treaty of Yaroslav Yaroslavich with Novgorod, and was later also mentioned in other documents dated as late as 1471.^[1]

Tre Volost bordered Kolo Volost approximately along the line between Kildin Island and Turiy Headland of the Turiy Peninsula.^[1] Tre Volost was situated to the east of that line, while Kolo Volost lay to the west of it.^[1]