| Street | Postal Code | City | Prefecture |
|---|---|---|---|
| Omirou Street | 13461 | Athens West Suburbs | Attica |
| Omirou Street | 13674 | Athens West Suburbs | Attica |
| Omirou Street | 12462 | Athens West Suburbs | Attica |
| Omirou Street | 12133 | Athens West Suburbs | Attica |
| Omirou Street | 12243 | Athens West Suburbs | Attica |
| Omologiton Street | 14342 | Athens West Suburbs | Attica |
| Omorfokklisias Street | 14234 | Athens West Suburbs | Attica |
| Oneirou Street | 13679 | Athens West Suburbs | Attica |
| Oplarchigou Koliou Street | 13121 | Athens West Suburbs | Attica |
| Orchomenou Street | 13451 | Athens West Suburbs | Attica |
| Orchomenou Street | 13122 | Athens West Suburbs | Attica |
| Orchomenou Street | 13343 | Athens West Suburbs | Attica |
| Orchomenou Street | 13675 | Athens West Suburbs | Attica |
| Orchomenou Street | 12132 | Athens West Suburbs | Attica |
| Orestiados Street | 13123 | Athens West Suburbs | Attica |
| Orestou Street | 13675 | Athens West Suburbs | Attica |
| Orestou Street | 12133 | Athens West Suburbs | Attica |
| Orestou Street | 12244 | Athens West Suburbs | Attica |
| Orfeos Street | 13451 | Athens West Suburbs | Attica |
| Orfeos Street | 13676 | Athens West Suburbs | Attica |
| Orfeos Street | 13673 | Athens West Suburbs | Attica |
| Orfeos Street | 13674 | Athens West Suburbs | Attica |
| Orfeos Street | 13344 | Athens West Suburbs | Attica |
| Orfeos Street | 14452 | Athens West Suburbs | Attica |
| Orfeos Street | 13121 | Athens West Suburbs | Attica |
| Orfeos Street | 12132, 12134 | Athens West Suburbs | Attica |
| Orfeos Street | 12241 | Athens West Suburbs | Attica |
| Origenous Street | 12137 | Athens West Suburbs | Attica |
| Orionos Street | 13673 | Athens West Suburbs | Attica |
| Oropou Street | 13121 | Athens West Suburbs | Attica |
| Oropou Street | 14232 | Athens West Suburbs | Attica |
| Oropou Street | 13451 | Athens West Suburbs | Attica |
| Oropou Street | 13341 | Athens West Suburbs | Attica |
| Oropou Street | 13675 | Athens West Suburbs | Attica |
| Oropou Street | 12132 | Athens West Suburbs | Attica |
| Oropou Street | 12135 | Athens West Suburbs | Attica |
| Ortansias Street | 13677 | Athens West Suburbs | Attica |
| Ortansias Street | 12137 | Athens West Suburbs | Attica |
| Orthodoxias Street | 13342 | Athens West Suburbs | Attica |
| Orthodoxou Christianikis Enoseos Street | 12134 | Athens West Suburbs | Attica |