Cognomen Ouran (Уран 
, Ouran 
) , worldwide, is quite a rare last name. The family name Ouran is habitual in Kyrgyzstan, where it is quite a common surname, Jordan, where it is a rare surname, and Algeria. Measured by absolute frequency, this name is the most popular in Kyrgyzstan, Algeria, and India. Likewise, Ouran is the forename as well as the last name.