Hahnensee (Romansh: Lej dals Chöds) is a lake above St. Moritz in the Grisons, Switzerland at 2153 m above sealevel.

In the summer time, the area can be reached by several hiking trails.

[1] In the Winter skiers coming from the Piz Corvatsch can take the Giand'Alva skilift and ski down the almost 9 km long ski run, also called Hahnensee, into St. Mortitz-Bad.

Though the run can only be opened after significant snowfall has accumulated.

This article related to a lake in Graubünden is a stub.