Trieshi is a historical Albanian tribe (fis) and region in Montenegro above the right bank of the Cem river near the Albanian border in Tuzi Municipality. It is part of the region of Malësia.

The Albanian tribes form a historical mode of social organization (farefisní) in Albania and the southwestern Balkans characterized by a common culture, often common patrilineal kinship ties and shared social ties. The fis stands at the center of Albanian organization based on kinship relations, a concept that can be found among southern Albanians also with the term farë.