Surname น้องเนย (Butter 
, น้องเนย, Nongnoei) , globally, is quite a common family name. The surname น้องเนย is characteristic of Netherlands, where it is quite a rare surname, Austria, and El Salvador. In absolute terms, the name is most common in Netherlands, Germany, and the United States. Much less frequently, น้องเนย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Butter | Netherlands, United Kingdom, Myanmar, United States, Germany |
Nongneaung, Nongnoeng, and Nongnueag