Cognomen 珂泉 (珂泉 
) , all around the world, is a very rare last name. The surname 珂泉 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 珂泉 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 珂泉 | China |