| Ratchapong Apisitsareekul |
| Ratchkrit Sangsukdee |
| Rath Sethik |
| Rath, Bisweswar |
| Rath, Krishna Chandra |
| Rathachai Chawuthai |
| Rathavoot Ruthankoon |
| Rathnakumar, Kaavya |
| Rathnayaka, R.M.U.S.K. |
| Rathnayake, Chamishara Hasarinda |
| Rathnayake, R.M.C.W.M |
| Rathnayake, R.M.C.W.M. |
| Rathnayake, Sahan Sachinda Bandara |
| Rathnayake, Thusitha Dilruwan Wijewardhana |
| Rathnayake, W. M. U. K. |
| Ratiporn Reangkitchamrus |
| Ratnaseeli, M. D. M. |
| Ratnawidjaja, Soehendro |
| Ratnayake, A. M. P. |
| Ratnayake, Dhyan Ruwantha |