Worldwide, Bertho (Bertho 
) is a rare predominantly masculine, but very seldom girly first name. The first name Bertho is characteristic of Latin America and the Caribbean, particularly the Dominican Republic, where it is a rare boy's name, Bolivia, and Peru, where it is a very rare boy's name. Measured by absolute frequency, it is commonest in Indonesia, Brazil, and the Dominican Republic. More frequently, Bertho is the last name as well as the forename.