Surname นาคนก (Otter 
, นาคนก 
) , in the entire world, is a common family name. The family name นาคนก is characteristic of Western Europe, particularly Netherlands, where it is quite a common surname, Austria, where it is quite a rare surname, and Switzerland. Not in comparison with a country's population, this name is the most popular in Netherlands, Germany, and the United States. Much less frequently, นาคนก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otter | Netherlands, United States, United Kingdom, Germany, Austria |
| นาคนก | Thailand |