In all the world, Guemon (Guemon 
) is an extremely rare unknown gender forename. Much more frequently, Guemon is the last name as well as the forename.
Mr, Thierry, Valerie, Yannick, Quentin, Johnatan, Nathalie, Laurent, Emmanuel, Isabelle, Sebastien, Anne-Lise, Claudette, Dominique, Guillaume, Frederic, Dilhani, Patrick, Bernard, Jean, Naty, Yves, Dylan, Laura, Marine, Maxime, Michel, Myriam, Sylvie, Albert, Coraly, Damien, Jerome, Edmond, Sébastien, and Jean-Pierre