Surname เอี่ยน (Ian 
, เอี่ยน) , all over the world, is a common cognomen. The surname เอี่ยน is characteristic of Macao, where it is a common surname, Lebanon, where it is quite a common surname, and Malaysia, where it is quite a rare surname. In absolute terms, the name is most common in Indonesia, Kenya, and Malaysia. More prevalently, เอี่ยน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ian | Australia, Philippines, Kenya, United Kingdom, United States |