| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| RANONG | airport | Thailand | 9.78 | 98.59 | 57 | 0 | |
| ROB MUANG | airport | Thailand | 16.07 | 103.65 | 459 | 0 | |
| ROI (ROI ET) | airport | Thailand | 16.12 | 103.77 | 451 | 0 | |
| ROI ET | airport | Thailand | 16.12 | 103.77 | 451 | 0 | |
| Ra-ngae | city | Narathiwat | Thailand | 6.30 | 101.73 | 78 | 25232 |
| Raboekka | city | Sa Kaeo | Thailand | 14.01 | 102.68 | 396 | 6258 |
| Raboet | city | Surin | Thailand | 15.28 | 103.92 | 416 | 21023 |
| Raboet Kham | city | Sa Kaeo | Thailand | 14.01 | 102.68 | 396 | 6258 |
| Racha Khram | city | Phra Nakhon Si Ayutthaya | Thailand | 14.20 | 100.52 | 45 | 25147 |
| Rachakrut | city | Ranong | Thailand | 9.74 | 98.60 | 85 | 9882 |
| Raeng | city | Phrae | Thailand | 17.99 | 99.76 | 387 | 5960 |
| Rahaeng | city | Tak | Thailand | 16.87 | 99.13 | 354 | 14353 |
| Rahaong | city | Tak | Thailand | 16.87 | 99.13 | 354 | 14353 |
| Raheng | city | Tak | Thailand | 16.87 | 99.13 | 354 | 14353 |
| Rahnot | city | Songkhla | Thailand | 7.78 | 100.32 | 16 | 30982 |
| Rai | city | Phayao | Thailand | 19.07 | 100.25 | 944 | 3862 |
| Rai Dan | city | Phetchaburi | Thailand | 13.00 | 99.90 | 45 | 26731 |
| Rai Khlong The | city | Kanchanaburi | Thailand | 14.81 | 98.46 | 830 | 1340 |
| Rai Naung Ya | city | Nakhon Ratchasima | Thailand | 14.60 | 101.22 | 902 | 15062 |
| Rai Nua | city | Songkhla | Thailand | 6.40 | 100.92 | 830 | 7801 |
| Rai Som | city | Phetchaburi | Thailand | 13.12 | 99.91 | 26 | 73009 |
| Rai Yao | city | Prachin Buri | Thailand | 13.89 | 101.50 | 45 | 15469 |
| Raiabuna | city | Krung Thep Maha Nakhon | Thailand | 13.68 | 100.51 | 6 | 1212168 |
| Raipa | city | Trat | Thailand | 12.49 | 102.36 | 59 | 8146 |
| Raja-grām | city | Phra Nakhon Si Ayutthaya | Thailand | 14.20 | 100.52 | 45 | 25147 |
| Rajburi | city | Ratchaburi | Thailand | 13.54 | 99.82 | 19 | 81434 |
| Rajkrud | city | Ranong | Thailand | 9.74 | 98.60 | 85 | 9882 |
| Rakam | city | Phitsanulok | Thailand | 16.76 | 100.12 | 141 | 21827 |
| Ram Duan | city | Ubon Ratchathani | Thailand | 14.50 | 104.88 | 830 | 10073 |
| Raman | city | Yala | Thailand | 6.48 | 101.42 | 229 | 18172 |
| Ranaong | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Ranaung | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Ranawng | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Rang | city | Kanchanaburi | Thailand | 14.34 | 99.49 | 242 | 4321 |
| Rang | city | Nakhon Ratchasima | Thailand | 15.10 | 102.71 | 830 | 18228 |
| Rang | city | Chanthaburi | Thailand | 12.97 | 102.48 | 374 | 3973 |
| Rang | city | Kanchanaburi | Thailand | 14.97 | 99.27 | 1748 | 1544 |
| Rang | city | Nakhon Ratchasima | Thailand | 15.18 | 102.49 | 830 | 18476 |
| Rang Phlap | city | Ratchaburi | Thailand | 13.90 | 99.86 | 39 | 70987 |
| Rang Wai | city | Kanchanaburi | Thailand | 14.23 | 99.77 | 26 | 12156 |
| Rangek | city | Narathiwat | Thailand | 6.30 | 101.73 | 78 | 25232 |
| Rangsit | city | Pathum Thani | Thailand | 13.98 | 100.62 | 6 | 192363 |
| Rangsit | city | Pathum Thani | Thailand | 14.03 | 100.76 | 52 | 102530 |
| Rangsit City Municipality | city | Pathum Thani | Thailand | 13.98 | 100.62 | 6 | 192363 |
| Ranod | city | Songkhla | Thailand | 7.78 | 100.32 | 16 | 30982 |
| Ranohng | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Ranong | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Ranot | city | Songkhla | Thailand | 7.78 | 100.32 | 16 | 30982 |
| Rasdorn Burana | city | Krung Thep Maha Nakhon | Thailand | 13.68 | 100.51 | 6 | 1212168 |
| Rasi Saila | city | Sisaket | Thailand | 15.34 | 104.15 | 830 | 19592 |
| Rasi Salai | city | Sisaket | Thailand | 15.34 | 104.15 | 830 | 19592 |
| Rat Burana | city | Krung Thep Maha Nakhon | Thailand | 13.68 | 100.51 | 6 | 1212168 |
| Rat Buri | city | Ratchaburi | Thailand | 13.54 | 99.82 | 19 | 81434 |
| Ratabhum | city | Songkhla | Thailand | 7.13 | 100.26 | 206 | 12516 |
| Ratana Wapi | city | Nong Khai | Thailand | 18.25 | 103.17 | 830 | 16658 |
| Ratanaburi | city | Surin | Thailand | 15.32 | 103.85 | 406 | 21009 |
| Ratburanah | city | Krung Thep Maha Nakhon | Thailand | 13.68 | 100.51 | 6 | 1212168 |
| Ratchaburi | city | Ratchaburi | Thailand | 13.54 | 99.82 | 19 | 81434 |
| Ratchakhram | city | Phra Nakhon Si Ayutthaya | Thailand | 14.20 | 100.52 | 45 | 25147 |
| Ratchasan | city | Chachoengsao | Thailand | 13.78 | 101.28 | 9 | 14056 |
| Ratchathewi | city | Krung Thep Maha Nakhon | Thailand | 13.76 | 100.53 | 6 | 1704811 |
| Ratsada | city | Trang | Thailand | 7.97 | 99.63 | 68 | 16196 |
| Rattanaburi | city | Surin | Thailand | 15.32 | 103.85 | 406 | 21009 |
| Rattanawapi | city | Nong Khai | Thailand | 18.21 | 103.18 | 830 | 14221 |
| Rattaphum | city | Songkhla | Thailand | 7.13 | 100.26 | 206 | 12516 |
| Rau Ok | city | Songkhla | Thailand | 6.42 | 100.92 | 334 | 7805 |
| Raun Phibun | city | Nakhon Si Thammarat | Thailand | 8.18 | 99.85 | 19 | 36079 |
| Raun Ya | city | Pattani | Thailand | 6.63 | 101.20 | 183 | 19465 |
| Raung Khi Na | city | Chiang Rai | Thailand | 19.66 | 99.55 | 1669 | 6407 |
| Raung Kwang | city | Phrae | Thailand | 18.34 | 100.32 | 830 | 8940 |
| Rawa | city | Songkhla | Thailand | 7.73 | 100.38 | 3 | 25466 |
| Rawai | city | Phuket | Thailand | 7.79 | 98.33 | 0 | 42604 |
| Rawoeng | city | Chon Buri | Thailand | 13.08 | 101.21 | 314 | 10244 |
| Rayaung | city | Rayong | Thailand | 12.67 | 101.28 | 16 | 46811 |
| Rayohng | city | Rayong | Thailand | 12.67 | 101.28 | 16 | 46811 |
| Rayong | city | Rayong | Thailand | 12.67 | 101.28 | 16 | 46811 |
| Red Karen Village | city | Mae Hong Son | Thailand | 19.48 | 97.96 | 862 | 1788 |
| Reman | city | Yala | Thailand | 6.48 | 101.42 | 229 | 18172 |
| Renawng | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Renong | city | Ranong | Thailand | 9.97 | 98.63 | 101 | 20809 |
| Renounakoun | city | Nakhon Phanom | Thailand | 17.08 | 104.59 | 830 | 16749 |
| Renu Nakawn | city | Nakhon Phanom | Thailand | 17.08 | 104.59 | 830 | 16749 |
| Renu Nakhaun | city | Nakhon Phanom | Thailand | 17.08 | 104.59 | 830 | 16749 |
| Renu Nakhon | city | Nakhon Phanom | Thailand | 16.94 | 104.71 | 830 | 26583 |
| Renu Nakhon | city | Nakhon Phanom | Thailand | 17.05 | 104.68 | 830 | 24493 |
| Renu Nakhon | city | Nakhon Phanom | Thailand | 17.08 | 104.59 | 830 | 16749 |
| Renut | city | Songkhla | Thailand | 7.78 | 100.32 | 16 | 30982 |
| Resok | city | Narathiwat | Thailand | 6.39 | 101.52 | 200 | 17459 |
| Rim | city | Nan | Thailand | 19.11 | 100.81 | 830 | 8276 |
| Rio Et | city | Roi Et | Thailand | 16.05 | 103.65 | 830 | 78080 |
| Ro Luai | city | Sisaket | Thailand | 14.51 | 104.54 | 830 | 14788 |
| Roe Sau | city | Narathiwat | Thailand | 6.39 | 101.52 | 200 | 17459 |
| Rohngna | city | Lampang | Thailand | 18.69 | 99.94 | 931 | 4768 |
| Roi Ech | city | Roi Et | Thailand | 16.05 | 103.65 | 830 | 78080 |
| Roi Et | city | Roi Et | Thailand | 16.05 | 103.65 | 830 | 78080 |
| Roi Hauk | city | Pattani | Thailand | 6.65 | 101.18 | 157 | 6607 |
| Roi-ed | city | Roi Et | Thailand | 16.05 | 103.65 | 830 | 78080 |
| Roiet | city | Roi Et | Thailand | 16.05 | 103.65 | 830 | 78080 |
| Rok Sakao | city | Chanthaburi | Thailand | 13.08 | 102.26 | 830 | 6756 |
| Rok Skao | city | Chanthaburi | Thailand | 13.08 | 102.26 | 830 | 6756 |
| Ron Phibun | city | Nakhon Si Thammarat | Thailand | 8.18 | 99.85 | 19 | 36079 |
| Rong Hip | city | Samut Songkhram | Thailand | 13.49 | 99.92 | 22 | 67927 |
| Rong Kham | city | Kalasin | Thailand | 16.27 | 103.75 | 830 | 21167 |
| Rong Kwang | city | Phrae | Thailand | 18.34 | 100.32 | 830 | 8940 |
| Rong Lek | city | Nakhon Si Thammarat | Thailand | 8.73 | 99.75 | 223 | 15049 |
| Rong Mau | city | Uttaradit | Thailand | 17.26 | 100.09 | 180 | 12520 |
| Rong Sabu | city | Samut Prakan | Thailand | 13.63 | 100.66 | 6 | 331592 |
| Rong Sak | city | Chiang Rai | Thailand | 19.78 | 99.91 | 1240 | 13627 |
| Rong Wi | city | Ratchaburi | Thailand | 13.45 | 99.89 | 36 | 44442 |
| Ronipibon | city | Nakhon Si Thammarat | Thailand | 8.18 | 99.85 | 19 | 36079 |
| Royal Parkville Village | city | Krung Thep Maha Nakhon | Thailand | 13.80 | 100.81 | 9 | 145327 |
| Royan Pak Win | city | Krung Thep Maha Nakhon | Thailand | 13.80 | 100.81 | 9 | 145327 |
| Rueso | city | Narathiwat | Thailand | 6.39 | 101.52 | 200 | 17459 |
| Run | city | Surin | Thailand | 14.48 | 103.98 | 830 | 9834 |
| Rusaw | city | Narathiwat | Thailand | 6.39 | 101.52 | 200 | 17459 |
| Ruso | city | Narathiwat | Thailand | 6.39 | 101.52 | 200 | 17459 |
| Rōhngchieng | city | Phayao | Thailand | 19.60 | 100.30 | 1669 | 13041 |
| Rōhngkhem | city | Phrae | Thailand | 18.30 | 100.30 | 830 | 8968 |
| Rōhngkwāng | city | Phrae | Thailand | 18.34 | 100.32 | 830 | 8940 |