Marco Berthelot (born December 11, 1972 in Murdochville, Quebec) is a Canadian curler from Longueuil, Quebec.
After playing lead for Michel Ferland at the 1991 Canadian Junior Curling Championships, Berthelot would be bumped up to third on Ferland's team and they won the 1992 Canadian Juniors.
His last provincial championship appearance was in 2009 playing for Martin Ferland where they lost in the final.
Berthelot is currently the General Manager for Curling Quebec.