Julien d'Ortoli (born 7 October 1983) is a French sailor in the 49er FX class. Together with Noé Delpech he won a bronze medal at the 2013 European Championships and placed fifth at the 2016 Olympics.
D'Ortoli took up sailing in 1990 and since 2007 races with Delpech. The pair has a nickname Juno from the combination of the first two letters of their given names.