All around the world, Terzilio (Terzilio 
) is a rare masculine forename. The forename Terzilio is habitual in Southern Europe, particularly Italy, where it is quite a rare boy's name.
| VARIANT | COUNTRY |
|---|---|
| Terzilio | Italy, France, Brazil |
| terzilio cardinali Italian resistance member, IT (b. 1913) |
|
Deri, Mancinelli, Biagiotti, Cecchetti, Capannoli, Francucci, Bagaglia, Arcaleni, Sonaglia, Mariotti, Zibetti, Zazzeri, Tavares, Girardi, Bertini, Barocci, Cussigh, Sacconi, Fedeli, Romani, Burini, Rossi, Ragni, Bozzi, Conti, Caini, Somai, Silva, Fani, Gazo, Bastianini, and Belladonna