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