María Fernanda Sesto (born 8 October 1976 in Buenos Aires) is an Argentine sports sailor.
At the 2000 Summer Olympics, she teamed with Paula Reinoso in the women's 470 class, finishing in 12th place.
At the 2008 Summer Olympics, she teamed with Consuelo Monsegur in the same class and finished in 16th place.
The same pairing took 13th place at the 2012 Olympic Games.
This biographical article related to sailing in Argentina is a stub.