Surname Trolio (Trolio 
) , throughout the world, is a rare last name. The surname Trolio is habitual in Argentina, where it is a rare surname, Uruguay, and Belgium. Measured by absolute frequency, it is commonest in the United States, Argentina, and France. Much less frequently, Trolio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trolio | Italy, Argentina, United States, France, Australia |
| rossella di trolio researcher |
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