Cognomen Ousan (Усан , Ousan , Усань ) , worldwide, is a rare family name. The surname Ousan is habitual in Kyrgyzstan, where it is a rare surname, Ukraine, and Russia. Likewise, Ousan is the forename as well as the last name.
Translations, transliterations and names similar to the name
Ousan
, Ousan 
, Усань