Surname Онер (Öner 
, Oner 
, Онер 
) , globally, is a common last name. The surname Онер is habitual in Western Asia, particularly Turkey, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Georgia. In absolute terms, it is commonest in Turkey, Germany, and the United States. Much less frequently, Онер is the forename as well as the last name.