Laëtitia Roux (born 21 June 1985) is a French ski mountaineer.

Roux was born in Savines-le-Lac and started ski-mountaineering at the age of nine.

In autumn of 2005, she joined the PACA section of the Fédération française de la montagne et de l’escalade (FFME).

She competed in December of the same year at the Alpi-Champsaur race.

She has been a member of the French national selection since 2007 and lives in Grenoble.