Can you get hepatitis c from french kissing?

Nope: Hepatitis C virus (HCV) is only known to be transmitted by direct blood contact. Even intercourse doesn't do it, even though hep C is often mischaracterized as an STD. (The frequency of HCV is no higher in the sex partners of infected people, if they don't also share drug injection equipment or otherwise have blood exposure.) There is no known risk via saliva or kissing.