| Ilision Street | 11528 | Athens | Attica |
| Illyrias Street | 11363 | Athens | Attica |
| Imeraiou Street | 11853 | Athens | Attica |
| Imion Street | 11527 | Athens | Attica |
| Imvrou Street | 11257, 11361 | Athens | Attica |
| Inglesi Street | 11743 | Athens | Attica |
| Inner Ring Road of Galatsi | 11363 | Athens | Attica |
| Inous Street | 10443, 10444 | Athens | Attica |
| Ioanninon Street | 10443, 10444 | Athens | Attica |
| Ioanninon Street | 11363 | Athens | Attica |
| Iofontos Street | 11634 | Athens | Attica |
| Iokastis Street | 10444 | Athens | Attica |
| Iolaou Street | 11852 | Athens | Attica |
| Iolis Street | 11636 | Athens | Attica |
| Ionias Avenue | 10445, 10446, 11143, 11144, 11145 | Athens | Attica |
| Ionias Street | 15669 | Athens | Attica |
| Ionidon Street | 11476 | Athens | Attica |
| Ionon Street | 11851, 11852 | Athens | Attica |
| Iou Street | 11251 | Athens | Attica |
| Ioulianou Street | 10433, 10434, 10439, 10440, 10682 | Athens | Attica |
| Ious Square | 11853 | Athens | Attica |
| Ious Street | 11853, 11854 | Athens | Attica |
| Ioustinianou Street | 11473 | Athens | Attica |
| Ipeirou Byway | 11363 | Athens | Attica |
| Ipeirou Street | 10433, 10439 | Athens | Attica |
| Ipeirou Street | 11363 | Athens | Attica |
| Ipitou Street | 10557 | Athens | Attica |
| Ipparchou Street | 11636, 11743 | Athens | Attica |
| Ippodamou Street | 11635 | Athens | Attica |
| Ippokratous Street | 10679, 10680, 11472 | Athens | Attica |
| Ippolytou Street | 11255 | Athens | Attica |
| Ippomedontos Street | 11635 | Athens | Attica |
| Ipponaktos Street | 11743, 11744 | Athens | Attica |
| Ipponikou Street | 11743 | Athens | Attica |
| Ippothoontidon Street | 11854 | Athens | Attica |
| Iraion Street | 11852 | Athens | Attica |
| Irakleidon Street | 11851, 11854 | Athens | Attica |
| Irakleiou Avenue | 11141, 11142, 11143 | Athens | Attica |
| Irakleitou Street | 10673 | Athens | Attica |
| Irakleous Street | 11743 | Athens | Attica |