Around the world, Mortreux (Mortreux 
) is an extremely rare feminine first name. Much more frequently, Mortreux is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mortreux | Belgium, Australia, United States, France, Slovakia |
Mr, Theo, Eric, Hugo, Fred, Frã, Yann, Yves, Marie, Manon, Sandy, Suzie, Serge, Alice, Alain, Andre, Annie, Cathy, Celia, Cindy, Cyril, Bruno, Jean, Ludo, Loic, Lisa, Ms, Ny, Max, Sã, Guy, Gã, Jã, Eva, Yan, Marc, Billy, Anna, Axel, Clã, Karl, Paul, Rose, Rene, Remi, Rudy, Dany, Grã, Anne, and Kenny