Family name Эн (En 
, Enn 
, Eine 
) , in the entire world, is a common last name. The cognomen Эн is characteristic of Malaysia, where it is quite a common surname, Singapore, and Albania, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Malaysia, China, and India. Also, Эн is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| En | Indonesia, Egypt, Malaysia, China, India |
| Enn | Myanmar, Indonesia, Malaysia, China, India |
| Eine | Myanmar, Indonesia, United States, Japan, China |
| Эн | Kyrgyzstan, Kazakhstan, Russia |
Ana, Ane, Ann, Anna, Anne, Ehn, Hannah, Hanne, Ánna, Èn, Én, Ėn, Άνα, Άννα, Ан, Ана, Ане, Анечка, Анн, Анна, Анне, Аннэ, Анюта, Анюша, Аня, Ганна, Ен, Ена, Енн, Нюра, Нюта, Нюша, Хана, Ханна, Энн, אן, אנה, האנה, آن, آنا, هان, هانا, আনা, আন্না, แอนนา, ანა, アナ, アン, アンナ, アンヌ, ハナ, ハンナ, ハンネ, 安, 安妮, 安娜, 安纳, 汉妮, 汉娜, 漢娜, and 안나