Worldwide, Houdin (Houdin 
, Уден 
) is a very rare gender-neutral first name. Much more prevalently, Houdin is the last name as well as the forename.
Mr, Sarah, Simon, Serge, Alain, Andre, Annie, Ariel, Circe, Cyril, Betty, Karen, Pablo, Pabla, Roger, Delia, Denis, Dante, David, Laura, Louna, Lucia, Mario, Marie, Maria, Yvon, Ms, Sam, Ana, Guy, Lã, Marc, Anne, Kino, Paul, Dany, Jacky, Lisa, Joel, Jean, Jeff, Elsa, Elba, Eric, Emma, Hugo, Odei, Yann, Luis, and Jorge