Family name Tosano (Tosano 
) , globally, is a very rare surname. The cognomen Tosano is habitual in Italy, where it is a very rare surname, Colombia, and Argentina, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Italy, Colombia, and the United States. Very seldom, Tosano is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tosano | Italy, Philippines, Colombia, United States, Argentina |