Throughout the world, Bigena (Bigena 
) is a very rare gender-neutral forename. The given name Bigena is characteristic of Tanzania, where it is a rare unisex name, and India, where it is an extremely rare gender-neutral name. Much less frequently, Bigena is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Bigena | Tanzania, India, Brazil |