Family name Булло (Bullo 
, Boullo 
, Булло 
) , across the world, is quite a common surname. The last name Булло is habitual in Italy, where it is quite a rare surname, Philippines, and Ethiopia, where it is a rare surname. Measured by absolute frequency, it is commonest in Philippines, Italy, and India. Much less frequently, Булло is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bullo | Ethiopia, Italy, Philippines, India, Pakistan |
| Boullo | India, France, Mexico, Philippines |
| Булло | Kazakhstan, Russia, Ukraine, Belarus |
| Bulleux | France |