Cavaglia is a small hamlet situated on the western flank of Val Poschiavo in the canton of Graubünden, Switzerland. Located at an elevation of 1,703 meters (5,587 ft) on the hanging Plan da l'Alp terrace, it sits approximately 4.7 kilometers (2.9 mi) northwest of the village of Poschiavo.
The locality is notable for its proximity to several landmarks, including a UNESCO-listed railway station and the Glacier Garden. Additionally, Cavaglia features a cavern hydropower plant that serves as part of the Val Poschiavo cascade.