 | ||
| Cities of Italy starting with the letter O (See below for Region Code descriptions) | ||
| Olbia (ML) | Opera (LB) | Ora (TT) |
| Orbetello (TS) | Oristano (ML) | Orosei (ML) |
| Orta San Giulio (PI) | Ortisei (TT) | Orvieto (UM) |
| Osimo (MA) | Ospedaletti (LG) | Ostia Antica (LZ) |
| Ostiano (LB) | Ostuni (AP) | Otranto (AP) |
| Ovindoli (AZ) | ||
| States of Italy Select a region for a complete city directory. | ||
| (AZ) - Abruzzi | (BS) - Basilicata | (CL) - Calabria |
| (CP) - Campania | (ER) - Emilia-Romagna | (FR) - Friuli-Venezia Giulia |
| (LZ) - Latium | (LG) - Liguria | (LB) - Lombardia |
| (MA) - Marche | (ML) - Molise | (PI) - Piemonte |
| (AP) - Puglia | (SD) - Sardinia | (SC) - Sicily |
| (TT) - Trentino-Alto Adige | (TS) - Tuscany | (UM) - Umbria |
| (AV) - Valle d'Aosta | (VN) - Venetia | |
