Cognomen Gelier (Gelier 
) , worldwide, is a very rare last name. The surname Gelier is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Argentina. Not in comparison with a country's population, this name is the most popular in Mexico, Brazil, and Nigeria. More frequently, Gelier is the forename as well as the last name.