Last name Willo (Вильгельм 
, Willo 
) , all around the world, is quite a rare cognomen. The family name Willo is habitual in Kazakhstan, where it is quite a rare surname, Jamaica, where it is a rare surname, and Belgium. Not in comparison with a country's population, this name is the most popular in Kazakhstan, Russia, and Ethiopia. Likewise, Willo is the forename as well as the last name.