Gauthier Klauss (born 17 December 1987) is former French slalom canoeist who competed at the international level from 2003 to 2018, when the C2 category was removed from major events.

He won a bronze medal in the C2 event at the 2016 Summer Olympics in Rio de Janeiro.

He and his partner Matthieu Péché also competed at the 2012 Summer Olympics in London where they finished in 4th place in the C2 event.

[1] He won six medals at the ICF Canoe Slalom World Championships with five golds (C2: 2017, C2 team: 2010, 2011, 2014, 2015) and a bronze (C2: 2015).

He also won two golds, a silver and a bronze in the C2 team event at the European Championships.