Cognomen เกิลล์ (Koen 
, เกิลล์ 
) , all over the world, is a common last name. The cognomen เกิลล์ is characteristic of Namibia, where it is quite a common surname, South Africa, and Suriname, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in South Africa, Indonesia, and the United States. More prevalently, เกิลล์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koen | South Africa, Netherlands, Belgium, Indonesia, Japan |
| เกิลล์ | Thailand |