Piz Terri is a mountain in the Lepontine Alps, located on the border between the cantons of Ticino and Graubünden. At 3,149 metres above sea level it is the highest summit lying on the chain between Greina and Soreda Pass. Piz Terri overlooks Lake Luzzone in Val Blenio on its west side, Val Sumvitg on its north side and Lumnezia on its east side. Close localities are Olivone (Val Blenio) and Vrin (Lumnezia).