Across the world, Булло (Bullo 
, Boullo 
, Булло 
) is quite a rare unisex first name. The first name Булло is habitual in Ethiopia, where it is quite a rare epicene name, India, where it is a rare epicene name, and Italy, where it is a very rare epicene name. More frequently, Булло is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Bullo | Philippines, Ethiopia, India, Pakistan, Italy |
| Boullo | Philippines, France, Mexico, India |
| Булло | Russia, Ukraine, Kazakhstan, Belarus |
| Bulleux | France |