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All around the world, Hasso (Hasso , Гассо , Хассо ) is quite a common unisex given name. The first name Hasso is characteristic of Germany, where it is quite a rare boy's name, Ethiopia, where it is a rare male name, and Syria. Measured by absolute frequency, the name is most common in Germany, India, and Ethiopia. Very seldom, Hasso is the last name as well as the forename.
Hasso is also a name for the fictitious and mythical characters: Leutnant Hasso Sigbjörnson , character in Raumpatrouille.