Surname Gilberth (Gilberth 
) , in the entire world, is quite a rare family name. The cognomen Gilberth is habitual in Nicaragua, where it is quite a rare surname, Venezuela, where it is a rare surname, and Tanzania. Not in comparison with a country's population, it is the most numerous in Tanzania, Mexico, and Venezuela. More frequently, Gilberth is the forename as well as the last name.