Piz Lunghin (2,780 m) is a mountain in the Swiss canton of Graubünden, located in the Albula range, overlooking the Maloja Pass . It is considered as the "roof of Europe" as the peak is nearby the triple watershed of the Lunghin Pass . Water running off this mountain can head towards the Mediterranean, the North Sea and the Black Sea, respectively by the rivers Po, Rhein, and Danube .

Piz Lunghin lies at the upper end of the Engadine (east) and the Bregaglia (west) valleys. The Maloja Pass, which connects the two valleys, is located 2 km south-east from the peak. The north side of the mountain lies in the protected area Parc Ela .