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