Family name Wasso (Wasso 
) , in the world, is a rare surname. The family name Wasso is habitual in Cameroon, where it is a rare surname, the Democratic Republic of the Congo, and Sweden. Measured by absolute frequency, this name is the most popular in the Democratic Republic of the Congo, Cameroon, and the United States. Very seldom, Wasso is the forename as well as the last name.