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In the entire world, Billet (Bulla
, Billet
, Bilet
) is quite a common gender-neutral forename. The given name Billet is characteristic of Luxembourg, where it is quite a rare girly name, India, where it is a rare gender-neutral name, and Ethiopia, where it is a rare female name. In absolute terms, it is commonest in India, Ethiopia, and Indonesia. More frequently, Billet is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Bulla | Colombia, Italy, India, France, United States |
| Billet | Italy, India, France, United States, Germany |
| Bilet | India, France, United States, United Kingdom, Germany |
| Billett | France, United States, United Kingdom, Argentina, Germany |