| Rehber | A guide who shows the way. |
| Rehiq | A person of pure essence. |
| Reimundo | Wise protection; advice; judgment; counsel |
| Rein | Rein refers to a long strap or cord used to control or guide a horse or other animal. |
| Reino | Kingdom or royal domain, derived from Latin 'regnum' and Spanish 'reino', referring to a sovereign territory. |
| Rejab | Born in the holy month. |
| Rembrandt | Rembrandt means 'strong and powerful with a bright fame' or 'renowned for strength'. |
| Remigio | Remigio is a Latin name meaning 'oarsman' or 'one who rows', derived from 'remigium', a boat. |
| Remmington | From the town of the raven |
| Renat | Reborn; born again |
| Rexx | A name meaning a powerful king. |
| Reynoldo | A wise and powerful ruler of men. |
| Rhet | One who is a gifted public speaker. |
| Rhette | One who speaks with great eloquence. |
| Riann | A name meaning a little queenly one. |
| Riayn | A little king or ruler of people. |
| Ribi | Ibn Ibrahim bin Muqasim al-Asadi |
| Richardd | A powerful ruler |
| Rickon | Ricard's son, a diminutive form of Richard, derived from Old High German 'ric' meaning ruler. |
| Rifaa | Bearer of high ranking;Sahabi |
| Rifqi | A kind, gentle, and friendly person. |
| Riggin | Riggin is a surname of English origin, possibly derived from the Old English word 'riggen,' meaning 'to be strong' or 'to be powerful'. |
| Rilley | From the rye clearing; a courageous woman |
| Rishiyur | Rishiyur is a Tamil name meaning 'place of the sage' or 'holy place of the wise'. |
| Riyaast | Government; domination; sway; rule; nobility; high mindedness |
| Rizqullah | Fortune from Allah |
| Rizwaan | Name of the gate keeper of Jannah |
| Rob Roy | A name meaning famous redhaired king. |
| Robrecht | A name meaning bright with true fame. |
| Rohen | A name meaning redhaired or ruddy one. |
| Rokko | A name meaning rest or place of repose. |
| Rolend | A name meaning famous throughout land. |
| Romah | Pilgrim to Rome |
| Romeoh | Pilgrim to Rome |
| Romualdo | Romualdo is a masculine given name of Latin origin, meaning 'reminding of Rome' or 'Roman'. |
| Romun | A variant of Roman meaning from Rome. |
| Roneldo | A name meaning powerful ruler or advisor. |
| Roope | A Finnish form meaning bright fame. |
| Roree | A name meaning the famous red king. |
| Roreye | A name meaning a bright red sunrise. |