Worldwide, Firstbornson (Firstbornson 
) is a very rare male given name. The first name Firstbornson is habitual in Southern Asia, particularly India, where it is an extremely rare boy's name.
| VARIANT | COUNTRY |
|---|---|
| Firstbornson | India |
Shylla, Lyngdoh, Lyngkhoi, Nongrum, and Kharbangar