| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Subulter | city | Corcaigh | Ireland | 52.1833333 | -8.8130556 | 337 | 5178 |
| Sui an Roin | city | County Offaly | Ireland | 52.9825 | -7.9244444 | 275 | 2693 |
| Sullane Bridge | city | Corcaigh | Ireland | 51.9136111 | -9.0538889 | 377 | 5215 |
| Summer Cove | city | Corcaigh | Ireland | 51.7033333 | -8.5022222 | 121 | 3480 |
| Summer Grove | city | Laois | Ireland | 53.1213889 | -7.375 | 419 | 2768 |
| Summer Hill | city | Corcaigh | Ireland | 52.1272222 | -8.6377778 | 262 | 5184 |
| Summerhill | city | Cill Chainnigh | Ireland | 52.8052778 | -7.1372222 | 777 | 3222 |
| Summerhill | city | An Mhi | Ireland | 53.4769444 | -6.7363889 | 255 | 4303 |
| Summerseat | city | An Mhi | Ireland | 53.4072222 | -6.4472222 | 249 | 60153 |
| Summerton | city | Baile Atha Cliath | Ireland | 53.3663889 | -6.4075 | 104 | 101055 |
| Summerville | city | | Ireland | 53.8 | -7.3666667 | 239 | 2713 |
| Summor Cove | city | Corcaigh | Ireland | 51.7033333 | -8.5022222 | 121 | 3480 |
| Suncroft | city | Cill Dara | Ireland | 53.1063889 | -6.8863889 | 364 | 7180 |
| Sunnaghconnor Mill | city | County Leitrim | Ireland | 53.9713889 | -7.7525 | 269 | 1394 |
| Sunnyside | city | Corcaigh | Ireland | 52.1575 | -8.6508333 | 269 | 5184 |
| Sutton | city | Baile Atha Cliath | Ireland | 53.3905556 | -6.1216667 | 0 | 32157 |
| Suí an Róin | city | County Offaly | Ireland | 52.9825 | -7.9244444 | 275 | 2693 |
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