In the entire world, Harreau (Harreau 
) is an extremely rare unknown gender first name. Much more prevalently, Harreau is the last name as well as the forename.
Mr, Carole, Celine, Cecile, Claude, Karine, Daniel, Johnny, Jeremy, Nicole, Franck, Flavie, Xavier, Sylvain, Charles, Cyrille, Pauline, Vianney, Florian, Quentin, Matthieu, Sandrine, Agnès, Arnaud, André, Alexis, Ms, Guy, Isa, Maud, Benj, Jean, Nina, Yvon, Marie, Sulli, Sullivan, Aline, Rémi, Denys, David, Louis, Lucie, James, Jessy, Julie, Matheo, Sabine, Annie, and Stephane