Surname Valso (Valse 
, Waltz 
, Walzer 
) , in all the world, is a common family name. The surname Valso is habitual in Austria, where it is quite a rare surname, Switzerland, and Israel. Measured by absolute frequency, the name is most common in the United States, India, and Germany. Much less frequently, Valso is the forename as well as the last name.