Family name Oulia (Уля 
, Oulia 
, Улья ) , around the globe, is a rare cognomen. The surname Oulia is habitual in Ivory Coast, where it is a rare surname, France, and Kyrgyzstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Ivory Coast, France, and Russia. Likewise, Oulia is the forename as well as the last name.