Surname เย็ญ (Yen 
, เย็ญ 
) , all over the world, is a widespread cognomen. The last name เย็ญ is habitual in Malaysia, where it is a common surname, Taiwan, where it is quite a common surname, and Bermuda (explore the name in all countries). Measured by absolute frequency, it is commonest in Malaysia, Vietnam, and Taiwan. Very seldom, เย็ญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yen | Taiwan, United States, Vietnam, Malaysia, Indonesia |
| เย็ญ | Thailand |