In all the world, Gerardin (Gerardin 
) is a rare unisex given name. The given name Gerardin is habitual in Mexico, where it is a very rare predominantly boy's, but very seldom girly name, Colombia, where it is a very rare feminine name, and France, where it is a very rare gender-neutral name. In absolute terms, the name is most common in Mexico, Philippines, and Colombia. More frequently, Gerardin is the last name as well as the forename.