| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Tandrastadhir | city | Iceland | 65.13 | -13.92 | 341 | 22 | |
| Tandrastaðir | city | Iceland | 65.13 | -13.92 | 341 | 22 | |
| Teigargerdhi | city | Iceland | 65.03 | -14.20 | 0 | 436 | |
| Teigargerði | city | Iceland | 65.03 | -14.20 | 0 | 436 | |
| Teigarhorn | city | Iceland | 64.68 | -14.35 | 3 | 152 | |
| Thernunes | city | Iceland | 64.98 | -13.88 | 3 | 0 | |
| Thiljuvellir | city | Iceland | 64.70 | -14.28 | 0 | 197 | |
| Thingmuli | city | Iceland | 65.03 | -14.62 | 390 | 0 | |
| Thorgrimsstadhir | city | Iceland | 64.90 | -14.50 | 1089 | 0 | |
| Thorvaldsstadhir | city | Iceland | 65.03 | -14.67 | 390 | 0 | |
| Thorvaldsstadhir | city | Iceland | 64.90 | -14.32 | 967 | 0 | |
| Thrandarstadhir | city | Iceland | 65.28 | -14.32 | 1148 | 497 | |
| Thverhamar | city | Iceland | 64.80 | -14.00 | 3 | 191 | |
| Thvotta | city | Iceland | 64.52 | -14.50 | 16 | 0 | |
| Toarsel | city | Iceland | 64.87 | -14.32 | 511 | 0 | |
| Tokastadhir | city | Iceland | 65.33 | -14.32 | 695 | 119 | |
| Tokastaðir | city | Iceland | 65.33 | -14.32 | 695 | 119 | |
| Tunga | city | Iceland | 64.93 | -14.10 | 59 | 140 | |
| Tunguhagi | city | Iceland | 65.17 | -14.53 | 193 | 0 | |
| Tunguhlidh | city | Iceland | 64.55 | -14.75 | 124 | 0 | |
| Tunguhlíð | city | Iceland | 64.55 | -14.75 | 124 | 0 |