In the entire world, Mariou (Mariou 
) is a very rare mostly male, but uncommonly girly forename. The given name Mariou is habitual in Algeria, where it is a rare masculine name, and Philippines, where it is a very rare gender-neutral name. More prevalently, Mariou is the last name as well as the forename.
Mr, Eleni, Henri, Flora, Marios, Michel, Myriam, Stella, Andria, Anaïs, Arnaud, Aurore, Audrey, Axelle, Cathou, Claude, Benoit, Pierre, Rachel, Lucile, Joseph, Julien, Nikos, Thomas, Jenny, Lisou, Ba, Mark, Alex, Remy, Lina, Jean, Eric, Hugo, Yann, Maria, Marie, Manos, Minou, Sonia, Sofia, Alain, Andre, Cindy, Dylan, Laura, Linda, Lucie, and Elodie