Around the globe, 沛忻 (沛忻 
) is a very rare boy's first name. The first name 沛忻 is habitual in Eastern Asia, particularly China, where it is an extremely rare male name. Very seldom, 沛忻 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 沛忻 | China |