Last name เอิญ (Oen 
, เอิญ 
) , around the globe, is quite a common surname. The surname เอิญ is habitual in Norway, where it is quite a rare surname, Indonesia, and Singapore, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Indonesia, the United States, and Norway. Also, เอิญ is the forename as well as the last name.