| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| T'ap-kol | city | Seoul | Korea, Republic of (South) | 37.46 | 127.06 | 173 | 948411 |
| T'ojong-dong | city | Seoul | Korea, Republic of (South) | 37.53 | 126.95 | 55 | 1667185 |
| T'ojong-jong | city | Seoul | Korea, Republic of (South) | 37.53 | 126.95 | 55 | 1667185 |
| Taehŭng-jŏng | city | Seoul | Korea, Republic of (South) | 37.55 | 126.94 | 65 | 1508185 |
| Tangin Ri | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tangin-dong | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tangin-jŏng | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tangin-ni | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tanginri | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tansan | city | Seoul | Korea, Republic of (South) | 37.52 | 126.88 | 26 | 1596775 |
| Tapgol | city | Seoul | Korea, Republic of (South) | 37.46 | 127.06 | 173 | 948411 |
| Thủ Nhĩ | city | Seoul | Korea, Republic of (South) | 37.60 | 126.98 | 830 | 1303228 |
| Tobong-dong | city | Seoul | Korea, Republic of (South) | 37.68 | 127.04 | 95 | 1012838 |
| Togok-tong | city | Seoul | Korea, Republic of (South) | 37.49 | 127.05 | 78 | 1146426 |
| Tojin-cho | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tokusomu | city | Seoul | Korea, Republic of (South) | 37.53 | 127.05 | 3 | 1598531 |
| Tongiak-tong | city | Seoul | Korea, Republic of (South) | 37.50 | 126.98 | 147 | 1371023 |
| Tongin River | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tongjak-jong | city | Seoul | Korea, Republic of (South) | 37.50 | 126.98 | 147 | 1371023 |
| Tongjak-tong | city | Seoul | Korea, Republic of (South) | 37.50 | 126.98 | 147 | 1371023 |
| Tongsomun-dong | city | Seoul | Korea, Republic of (South) | 37.60 | 127.01 | 223 | 1379883 |
| Ttuksŏm | city | Seoul | Korea, Republic of (South) | 37.53 | 127.05 | 3 | 1598531 |
| Tukto | city | Seoul | Korea, Republic of (South) | 37.53 | 127.05 | 3 | 1598531 |
| Tunch'on-dong | city | Seoul | Korea, Republic of (South) | 37.53 | 127.14 | 114 | 1330318 |
| Tunch’on-dong | city | Seoul | Korea, Republic of (South) | 37.53 | 127.14 | 114 | 1330318 |
| Tungh'an-dong | city | Seoul | Korea, Republic of (South) | 37.55 | 126.86 | 114 | 1396309 |
| Tōjimmachi | city | Seoul | Korea, Republic of (South) | 37.53 | 126.90 | 49 | 1716789 |
| Tōtō | city | Seoul | Korea, Republic of (South) | 37.53 | 127.05 | 3 | 1598531 |
| Tŭngh’an-dong | city | Seoul | Korea, Republic of (South) | 37.55 | 126.86 | 114 | 1396309 |
| T’ap-kol | city | Seoul | Korea, Republic of (South) | 37.46 | 127.06 | 173 | 948411 |
| T’ojŏng-dong | city | Seoul | Korea, Republic of (South) | 37.53 | 126.95 | 55 | 1667185 |
| T’ojŏng-jŏng | city | Seoul | Korea, Republic of (South) | 37.53 | 126.95 | 55 | 1667185 |