| PROINSIAS | A Gaelic version of Francis. |
| Quillan | A name meaning cub or small and young. |
| Quinnell | Counsel. Variant of Quinn. |
| Qwin | A wise and noble leader. |
| Rabhartach | An Irish name meaning prosperous. |
| Rafer | Derived from the Gaelic for prosperous. |
| Raghallach | A fierce and brave warrior. |
| RAIBEART | Gaelic form of Robert (shining fame) |
| Raisie | Diminiative of rose |
| Raonaild | A variant of the name Ronald. |
| Raonull | A mighty ruler of the people. |
| Revelin | A form of roland |
| Rhona | Powerful, mighty |
| Rhoswen | A fair and white rose flower. |
| Rianne | A graceful and royal princess. |
| Rioghbhardan | Irish for little king. |
| Rohan | Ascending; Ascending; developing bud; Climbing or ascending, something, developing, increasing; Red-haired: red.; Sandalwood |
| Ronin | A name meaning wandering soul. |
| 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 |
| RORY | A name meaning the redhaired king. |
| Rosaleen | Variant of Roisin: Little Rose |
| Rosina | A name meaning little rose flower. |
| Roy | King; Regal; Red.; Red haired; A redhaired man / a king |
| Ruailidh | A Gaelic name meaning red ruler. |
| RUAIRIDH | Scottish name meaning red king. |
| Ryan | Descendant of Rian King; Kingly.; Little king.; The little ruler; little king; Young Royalty |
| Saoirse | The state of being free |
| Saxen | One who hails from Saxony. |
| Selia | A name meaning heavenly or sky. |
| Seonaid | The Scottish Gaelic form of Jane. |
| Seoras | The Scottish Gaelic form of George. |
| SEORUS | A variant of the name George form. |
| SEUMAS | The Scottish form of James. |
| Sguelaiche | A rare name of Gaelic Irish origin. |
| Shan | Coral; Mountain; Old; wise.; Pride Prestige; Variant of Shaun from John. |
| Shannan | Wise river or old river |
| Shanon | Derived from shannon |
| Shaunna | Fem. a form of shaun |
| Sheena | God is gracious |
| Shelagh | A name meaning a blind woman. |