Kai Mahler (born 11 September 1995) is a Swiss freestyle skier who grew up in Fischenthal, Switzerland.

He won a silver medal in the Big Air competition at Winter X Games XVI.

Kai is currently sponsored by Redbull, K2, Marker, Buff, Electric, Audi, Sporthilfe, Full Tilt, Sportmittelschule, and Swisscom.

Kai has appeared in X-Games twice, both times receiving silver medals in the Big Air Competition.

This biographical article relating to freestyle skiing in Switzerland is a stub.