Family name เกิ้น (Koen 
, เกิ้น) , all over the world, is a common cognomen. The cognomen เกิ้น is characteristic of Namibia, where it is quite a common surname, South Africa, and Suriname, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in South Africa, Indonesia, and the United States. More prevalently, เกิ้น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koen | South Africa, Netherlands, Belgium, Indonesia, Japan |