| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Σίβα | city | Kriti | Greece | 35.21 | 25.04 | 948 | 17004 |
| Σίβας | city | Kriti | Greece | 35.02 | 24.81 | 216 | 7107 |
| Σίβηρη | city | Kentriki Makedonia | Greece | 40.04 | 23.36 | 0 | 3267 |
| Σίγρι | city | Voreio Aigaio | Greece | 39.22 | 25.85 | 275 | 510 |
| Σίδερη | city | Ipeiros | Greece | 39.59 | 20.35 | 1253 | 3830 |
| Σίκινος | city | Notio Aigaio | Greece | 36.70 | 25.12 | 1177 | 197 |
| Σίλαμος | city | Kriti | Greece | 35.27 | 25.15 | 830 | 89089 |
| Σίλλη | city | Anatoliki Makedonia kai Thraki | Greece | 41.35 | 24.53 | 2509 | 149 |
| Σίμος | city | Dytiki Ellada | Greece | 38.54 | 21.82 | 2664 | 873 |
| Σίμος Ιωαννίδης | city | Dytiki Makedonia | Greece | 40.78 | 21.36 | 2883 | 6146 |
| Σίνα | city | Peloponnisos | Greece | 36.81 | 22.50 | 380 | 2283 |
| Σίνδος | city | Kentriki Makedonia | Greece | 40.67 | 22.81 | 9 | 20619 |
| Σίνεβρο | city | Dytiki Ellada | Greece | 38.07 | 22.34 | 2509 | 2182 |
| Σίνεβρον | city | Dytiki Ellada | Greece | 38.07 | 22.34 | 2509 | 2182 |
| Σίσαι | city | Kriti | Greece | 35.39 | 24.88 | 236 | 1134 |
| Σίσαρχα | city | Kriti | Greece | 35.30 | 24.91 | 2053 | 3518 |
| Σίσες | city | Kriti | Greece | 35.39 | 24.88 | 236 | 1134 |
| Σίσι | city | Kriti | Greece | 35.31 | 25.52 | 13 | 3178 |
| Σίσιον | city | Kriti | Greece | 35.31 | 25.52 | 13 | 3178 |
| Σίσσες | city | Kriti | Greece | 35.39 | 24.88 | 236 | 1134 |
| Σίταινα | city | Peloponnisos | Greece | 37.29 | 22.65 | 1860 | 1167 |
| Σίτανος | city | Kriti | Greece | 35.12 | 26.16 | 1998 | 2087 |
| Σίτσαινα | city | Ipeiros | Greece | 39.76 | 21.05 | 2723 | 1349 |
| Σίφνος | city | Notio Aigaio | Greece | 36.97 | 24.72 | 830 | 2263 |