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