Surname كويلو (Cuello 
, Coelho 
, كويلو) , worldwide, is a widespread cognomen. The family name كويلو is characteristic of Portugal, where it is a widespread surname, Brazil, where it is a common surname, and Cabo Verde (explore the name in all countries). In absolute terms, it is the most numerous in Brazil, Portugal, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Cuello | Portugal, Colombia, Brazil, Dominican Republic, Argentina |
| Coelho | Portugal, Angola, Colombia, Brazil, Argentina |