Surname Viool (Viola 
, Vitula 
, Viole 
) , around the globe, is a common family name. The last name Viool is characteristic of Italy, where it is quite a common surname, Paraguay, and Argentina (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Italy, Philippines, and the United States. Likewise, Viool is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Viola | Philippines, Italy, United States, Argentina, Germany |
| Vitula | Spain, Brazil, India, France, United States |
| Viole | Brazil, Italy, Indonesia, United States, Argentina |
| Viool | Brazil, Netherlands, Germany, Canada |