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