Family name Koen (Koen 
, 科恩 
, Кун 
, among others...) , all around the world, is a common surname. The family name Koen 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 the most numerous in South Africa, Indonesia, and the United States. More prevalently, Koen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koen | Belgium, Japan, Netherlands, Indonesia, South Africa |
| 科恩 | China |
| Кун | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |
| Коен | Kyrgyzstan, Russia, Bulgaria, Ukraine, Israel |
| Коэн | Russia, Kyrgyzstan, Lithuania, Israel |
| gisbertus koen Dutch classical philologist, NL (b. 1736) |
|
|
| jacob jan gijsbert koen Netherlands Marine Corps personel, NL (b. 1848) |
|
|
| klaas koen (b. 1852) |
|
|
| be kwat koen (b. 1863) |
|
|
|
tanja koen Dutch television presenter and presenter, NL (b. 1925) |
|
| frits koen Dutch fencer (b. 1876) |
|
|
|
frank koen Dutch politician, NL (b. 1956) |
|
|
erwin koen Dutch footballer, NL (b. 1978) |
|
| nel koen Dutch painter, NL (b. 1934) |
|
|
| billy koen nuclear engineer, author, and professor emeritus (b. 1938) |
|
|
| charles koen American activist, US (b. 1945) |
|
|
| zozeph koen GR (b. 1937) |
|
|
| mirjam koen Dutch actor and theatre director, NL (b. 1948) |
|
|
| karleen koen American writer, US (b. 1948) |
|
|
| johnny koen cyclist, ZA (b. 1957) |
|