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