Across the world, Queirolo (Queirolo 
) is a very rare unisex forename. The first name Queirolo is habitual in Italy, where it is a rare largely feminine, but uncommonly masculine name, and China, where it is an extremely rare boy's name. Much more prevalently, Queirolo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Queirolo | Italy, Uruguay, Peru, Chile, Argentina |