Surname Roncagliolo (Roncagliolo 
) , all over the world, is a rare last name. The last name Roncagliolo is characteristic of Peru, where it is quite a rare surname, Chile, where it is a rare surname, and Italy. Much less frequently, Roncagliolo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roncagliolo | Italy, Chile, United States, Argentina, Peru |
| secondino roncagliolo (b. 1618) |
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rafael roncagliolo Peruvian politician, PE (b. 1944) |
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| cristián carlo roncagliolo pacheco Roman Catholic bishop, CL (b. 1969) |
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