Joanne Mayer (born 16 March 1993 in Mulhouse) is a French sprint canoeist.

[1][3] Mayer is a member of the canoe and kayak team for Mulhouse-AS Cheminots Riedisheim, and is coached and trained by her father Sébastien Mayer, who competed in the men's kayak four (1000 m) at the 1992 Summer Olympics in Barcelona.

[1][2][4] Her grandfather Albert Mayer, on the other hand, also participated in the same discipline at the 1968 Summer Olympics in Mexico City.

[5] Mayer represented France at the 2012 Summer Olympics in London, where she competed in the women's K-4 500 metres, along with her teammates Marie Delattre, Sarah Guyot, and Gabrielle Tuleu.

Mayer and her team finished last in the final by more than a second behind the Russian team (led by Yuliana Salakhova), recording the slowest time of 1:35.299.