Sébastien Lacroix (born 20 April 1983) is a French Nordic combined skier who has competed between 2001 and 2015. At the 2010 Winter Olympics in Vancouver, he finished fourth in the 4 x 5 km team event and finished 19th in both the 10 km individual normal hill and the 10 km individual large hill events.
In the FIS Nordic World Ski Championships in Val di Fiemme 2013 he won gold medals in both team events; normal and large hill.
His best World Cup finish was fifth in a 4 x 5 km team event at Germany in 2009 while his best individual finish was seventh in a 10 km individual large hill event at Italy that same year. His best career finish is second on seven different occasions in lesser events since 2003.