Pierre-Alexis Ponsot (born May 8, 1975 in Granville, Manche) is a French sailor, who specialized in two-person keelboat (Star) class. He represented France, along with his partner and six-time Olympian Xavier Rohart at the 2012 Summer Olympics, and has also been training for Ouest Nautical Sports Club () throughout most of his sporting career. As of September 2014, Leboucher is ranked forty-first in the world for fleet racing and keelboat by the International Sailing Federation, following his successes at the 2011 ISAF Sailing World Championships and 2012 Star World Championships.