| Ogilvie | From the high peak |
| Oidhche | A Gaelic word meaning the night time. |
| Oisin | little fawn - big warrior |
| Oliphant | One who is like an elephant |
| Paden | A name meaning royal or noble one. |
| Padruig | Noble or patrician descent |
| Parlan | A name meaning son of Partholan. |
| Paton | From the town of the fighter. |
| Peyton | From the town of Pgas farm. |
| Pherson | A surname meaning son of a parson. |
| Quacey | A name meaning a person of moonlight. |
| Quany | A name meaning a sweet flower. |
| Quarrie | One who works in a stone quarry. |
| Quinian | A name meaning small and graceful. |
| Quinn | Wise and intelligent leader |
| Ranald | Rules with counsel. Form of Ronald. |
| Raoghnailt | A Gaelic form of Reginald. |
| Ray | Beam of light; Counselor. Abbreviation of Raymond.; Doe.; Diminutive of Raymond: Counsel; mighty protection; guards wisely.; Grace; Regal; Radiant.; Royal; Form of Raymond, meaning a wise protector; Wise Protector. A wise warrior. |
| Reid | Redheaded. Surname. |
| Riane | A queenly or royal descendant. |
| Robena | A name meaning bright fame. |
| Robert | Bright Fame; Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.; 'King Henry IV, Part 2' Robert Shallow, a country justice. 'King John' Robert Faulconbridge, and his father, Sir Robert Faulconbridge. 'King Richard III' Sir |
| Robina | A bright and shining maiden. |
| Rodric | A powerful and famous ruler. |
| Rodrick | A famous and mighty leader. |
| Ronald | Mighty or powerful |
| Ronnette | Feminine form of Ronald: Mighty counselor/ruler. |
| Ronnie | Diminutive of Veronica: True image; honest image. Biblical - from the maiden who handed Christ her handkerchief on the way to Calvary. His likeness miraculously appeared on the handkerchief, thus she received her name.; Diminutive of Ronald: Mighty counse |
| Ros | From the peninsula |
| Rosen | the flower rose |
| Rosenwyn | A fair and white rose bloom. |
| Rosevear | from the moorland |
| Rossiter | One who lives near the heath. |
| Rosslyn | Feminine form of Ross: Promontory. From the peninsula. A Scottish place name and surname. |
| Rosston | From the town of the roses. |
| Roth | Derived from the color red hair. |
| Roy | King; Regal; Red.; Red haired; A redhaired man / a king |
| Royall | An archaic spelling of royal status. |
| Ryanne | A graceful and little princess. |
| Sandy | Abbreviation of Alexander defender of man.; Diminutive of Alexander: Defender of men; protector of mankind.; Derives From Alexander; Feminine form of Alexander: Defender; protector of mankind. Famous Bearer: Alexander the Great.; Good Lamp; From the name |