| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ίασμος | city | Anatoliki Makedonia kai Thraki | Greece | 41.13 | 25.18 | 16 | 4236 |
| Ίβηρα | city | Kentriki Makedonia | Greece | 40.90 | 23.70 | 255 | 2348 |
| Ίδα | city | Kentriki Makedonia | Greece | 41.01 | 22.18 | 1669 | 1937 |
| Ίζγκλιμπι | city | Dytiki Makedonia | Greece | 40.49 | 21.21 | 2509 | 12388 |
| Ίζγλιμπι | city | Dytiki Makedonia | Greece | 40.49 | 21.21 | 2509 | 12388 |
| Ίζλιμπι | city | Dytiki Makedonia | Greece | 40.49 | 21.21 | 2509 | 12388 |
| Ίλιον | city | Attiki | Greece | 38.03 | 23.70 | 219 | 965063 |
| Ίμβρος | city | Kriti | Greece | 35.25 | 24.17 | 2509 | 598 |
| Ίμερα | city | Anatoliki Makedonia kai Thraki | Greece | 41.12 | 24.78 | 1010 | 7385 |
| Ίμερα | city | Dytiki Makedonia | Greece | 40.29 | 22.04 | 948 | 1996 |
| Ίμερος | city | Anatoliki Makedonia kai Thraki | Greece | 40.96 | 25.37 | 59 | 2022 |
| Ίμπρος | city | Kriti | Greece | 35.25 | 24.17 | 2509 | 598 |
| Ίναχος | city | Peloponnisos | Greece | 37.66 | 22.75 | 183 | 20377 |
| Ίνι | city | Kriti | Greece | 35.09 | 25.28 | 830 | 4689 |
| Ίνια | city | Kriti | Greece | 35.08 | 25.05 | 1669 | 3626 |
| Ίνιον | city | Kriti | Greece | 35.09 | 25.28 | 830 | 4689 |
| Ίος | city | Notio Aigaio | Greece | 36.73 | 25.28 | 98 | 1640 |
| Ίππει | city | Voreio Aigaio | Greece | 39.12 | 26.41 | 82 | 4252 |
| Ίππειο | city | Voreio Aigaio | Greece | 39.12 | 26.41 | 82 | 4252 |
| Ίρια | city | Peloponnisos | Greece | 37.49 | 23.01 | 52 | 1165 |
| Ίσαλο | city | Anatoliki Makedonia kai Thraki | Greece | 41.06 | 25.45 | 95 | 12729 |
| Ίσαλον | city | Anatoliki Makedonia kai Thraki | Greece | 41.06 | 25.45 | 95 | 12729 |
| Ίσαρης | city | Peloponnisos | Greece | 37.36 | 22.01 | 2509 | 1817 |
| Ίσγλιμπι | city | Dytiki Makedonia | Greece | 40.49 | 21.21 | 2509 | 12388 |
| Ίστριος | city | Notio Aigaio | Greece | 36.10 | 27.83 | 1669 | 492 |
| Ίστρο | city | Kriti | Greece | 35.12 | 25.74 | 1082 | 4350 |
| Ίστρον | city | Kriti | Greece | 35.12 | 25.74 | 1082 | 4350 |
| Ίσωμα | city | Kentriki Makedonia | Greece | 40.99 | 23.16 | 1824 | 1449 |
| Ίσωμα | city | Dytiki Ellada | Greece | 38.10 | 21.69 | 387 | 5437 |
| Ίσωμα Καρυών | city | Peloponnisos | Greece | 37.43 | 22.05 | 1187 | 2410 |
| Ίταμος | city | Thessalia | Greece | 39.22 | 21.80 | 3595 | 1022 |
| Ίχνα | city | Kentriki Makedonia | Greece | 41.03 | 23.83 | 843 | 5563 |