Family name Mencho (Mencho 
) , in all the world, is a rare last name. The family name Mencho is characteristic of Guatemala, where it is quite a rare surname, Ethiopia, where it is a rare surname, and Nicaragua, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Guatemala, Ethiopia, and the United States. Likewise, Mencho is the forename as well as the last name.