| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Σύβοτα | city | Ipeiros | Greece | 39.41 | 20.25 | 380 | 1769 |
| Σύβοτα | city | Ionia Nisia | Greece | 38.62 | 20.68 | 3 | 1823 |
| Σύβρος | city | Ionia Nisia | Greece | 38.67 | 20.65 | 839 | 2910 |
| Σύγκινα | city | Dytiki Ellada | Greece | 39.12 | 21.14 | 1669 | 2552 |
| Σύδενδρο | city | Dytiki Makedonia | Greece | 40.12 | 21.35 | 2509 | 2352 |
| Σύδενδρον | city | Dytiki Makedonia | Greece | 40.12 | 21.35 | 2509 | 2352 |
| Σύμβολα | city | Anatoliki Makedonia kai Thraki | Greece | 41.18 | 25.41 | 830 | 11538 |
| Σύμη | city | Notio Aigaio | Greece | 36.61 | 27.84 | 308 | 3900 |
| Σύνορα | city | Peloponnisos | Greece | 36.80 | 22.50 | 101 | 3263 |
| Σύνορο | city | Attiki | Greece | 37.89 | 23.97 | 255 | 15668 |
| Σύνορο | city | Peloponnisos | Greece | 37.69 | 22.66 | 288 | 4969 |
| Σύρνα | city | Peloponnisos | Greece | 37.51 | 22.11 | 2509 | 751 |
| Σύρος | city | Notio Aigaio | Greece | 37.45 | 24.93 | 62 | 16062 |
| Σύρριζο | city | Peloponnisos | Greece | 37.37 | 21.91 | 3349 | 1526 |
| Σύρριζον | city | Peloponnisos | Greece | 37.37 | 21.91 | 3349 | 1526 |