| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Radhapuram | city | Tamil Nadu | India | 8.26 | 77.68 | 164 | 31777 |
| Raja Annamalaipuram | city | Tamil Nadu | India | 13.03 | 80.26 | 39 | 2272003 |
| Rajakilpakkam | city | Tamil Nadu | India | 12.92 | 80.17 | 49 | 52485 |
| Rajampalaiyam | city | Tamil Nadu | India | 13.45 | 80.17 | 22 | 27989 |
| Rajampalaiyam | city | Tamil Nadu | India | 13.30 | 80.23 | 32 | 47662 |
| Rajapalayam | city | Tamil Nadu | India | 9.45 | 77.56 | 830 | 114061 |
| Rajapuram | city | Tamil Nadu | India | 10.80 | 77.89 | 830 | 24302 |
| Rajulakandigai | city | Tamil Nadu | India | 13.38 | 80.06 | 104 | 45147 |
| Rakkampalaiyam | city | Tamil Nadu | India | 13.47 | 80.16 | 22 | 27302 |
| Ramanathapuram | city | Tamil Nadu | India | 9.37 | 78.84 | 19 | 66947 |
| Ramanayakankandigai | city | Tamil Nadu | India | 13.37 | 80.09 | 75 | 44575 |
| Ramanjeri | city | Tamil Nadu | India | 13.20 | 79.79 | 170 | 35366 |
| Ramanthapuram | city | Tamil Nadu | India | 9.37 | 78.84 | 19 | 66947 |
| Ramapuram | city | Tamil Nadu | India | 13.52 | 80.09 | 29 | 32744 |
| Ramaswamipatti | city | Tamil Nadu | India | 9.39 | 78.26 | 183 | 20959 |
| Ramayapuram | city | Tamil Nadu | India | 12.56 | 80.12 | 65 | 50582 |
| Rameshwaram | city | Tamil Nadu | India | 9.29 | 79.31 | 3 | 19373 |
| Ramesvaram | city | Tamil Nadu | India | 9.29 | 79.31 | 3 | 19373 |
| Rameswaram | city | Tamil Nadu | India | 9.29 | 79.31 | 3 | 19373 |
| Ramireddipalaiyam | city | Tamil Nadu | India | 13.27 | 80.26 | 36 | 60581 |
| Ramnad | city | Tamil Nadu | India | 9.37 | 78.84 | 19 | 66947 |
| Rangampettai | city | Tamil Nadu | India | 13.01 | 78.74 | 1669 | 30404 |
| Rangarajapuram | city | Tamil Nadu | India | 13.01 | 80.23 | 52 | 2182732 |
| Ranipet | city | Tamil Nadu | India | 12.93 | 79.33 | 830 | 145085 |
| Ranipettai | city | Tamil Nadu | India | 12.93 | 79.33 | 830 | 145085 |
| Ranippettai | city | Tamil Nadu | India | 12.93 | 79.33 | 830 | 145085 |
| Ranjangudi | city | Tamil Nadu | India | 11.35 | 78.94 | 370 | 34081 |
| Rasipur | city | Tamil Nadu | India | 11.46 | 78.19 | 830 | 66578 |
| Rayadikandigai | city | Tamil Nadu | India | 13.45 | 80.15 | 36 | 35296 |
| Rayakotta | city | Tamil Nadu | India | 12.51 | 78.03 | 2608 | 26246 |
| Rayapuram | city | Tamil Nadu | India | 13.11 | 80.30 | 36 | 1368760 |
| Reddikandigai | city | Tamil Nadu | India | 13.47 | 80.14 | 42 | 36308 |
| Reddikuppam | city | Tamil Nadu | India | 12.70 | 80.06 | 108 | 39753 |
| Reddipalaiyam | city | Tamil Nadu | India | 13.11 | 80.12 | 52 | 73332 |
| Reddipalaiyam | city | Tamil Nadu | India | 13.39 | 80.10 | 78 | 45102 |
| Reddipālaiyam | city | Tamil Nadu | India | 13.26 | 80.28 | 26 | 80979 |
| Reddipālaiyam | city | Tamil Nadu | India | 13.28 | 80.29 | 32 | 69544 |
| Reddipālaiyam | city | Tamil Nadu | India | 13.35 | 80.26 | 42 | 11398 |
| Rettambedu | city | Tamil Nadu | India | 13.43 | 80.17 | 26 | 30722 |
| Riacotta | city | Tamil Nadu | India | 12.51 | 78.03 | 2608 | 26246 |
| Rishivandiyam | city | Tamil Nadu | India | 11.81 | 79.10 | 830 | 47096 |
| Rishivandryam | city | Tamil Nadu | India | 11.81 | 79.10 | 830 | 47096 |
| Royapettah | city | Tamil Nadu | India | 13.05 | 80.26 | 49 | 2329223 |
| Royapuram | city | Tamil Nadu | India | 13.11 | 80.30 | 36 | 1368760 |
| Rudrakoti | city | Tamil Nadu | India | 12.60 | 80.06 | 118 | 30771 |
| Rājapālaiyam | city | Tamil Nadu | India | 9.45 | 77.56 | 830 | 114061 |
| Rājāmātam | city | Tamil Nadu | India | 10.32 | 79.35 | 3 | 49933 |
| Rājāpālaiyam | city | Tamil Nadu | India | 13.44 | 80.15 | 39 | 38166 |
| Rājāsingamangalam | city | Tamil Nadu | India | 9.64 | 78.84 | 32 | 23323 |
| Rāllapādi | city | Tamil Nadu | India | 13.33 | 80.07 | 85 | 42600 |
| Rāmachandrapuram | city | Tamil Nadu | India | 13.44 | 80.04 | 45 | 43635 |
| Rāmancheri | city | Tamil Nadu | India | 13.20 | 79.79 | 170 | 35366 |
| Rāmayapālaiyam | city | Tamil Nadu | India | 13.47 | 80.19 | 19 | 14004 |
| Rāsipuram | city | Tamil Nadu | India | 11.46 | 78.19 | 830 | 66578 |
| Rāyakottai | city | Tamil Nadu | India | 12.51 | 78.03 | 2608 | 26246 |
| Rāyalpattu | city | Tamil Nadu | India | 12.70 | 80.09 | 68 | 29842 |
| Rāyamangalam | city | Tamil Nadu | India | 12.68 | 80.10 | 52 | 29838 |