| Baby Name | Meaning | Gender |
|---|
| Rory | Red. Sixteenth-Century Rebel Chief Rory O'more Is Celebrated In Irish Poetry. | Male |
| Roslin | Red Haired | Male |
| Ross | Red. Surname. | Male |
| Rourke | An Ancient Given Name Adopted As An Irish Clan Name. Surname. | Male |
| Rowan | From The Rowan Tree | Male |
| Roy | Regal | Male |
| Ruairidh | Famous Ruler | Male |
| Ryan | Kingly. | Male |
| Rylee | English Meadow. Variant Of Riley. | Male |
| Samuel | Asked Of God | Male |
| Scanlon | Scandal | Male |
| Seamus | Form Of James Supplanter. | Male |
| Sean | Gift From God. Form Of John From The French Jean. | Male |
| Seana | Gift From God | Female |
| Seumas | Supplanter | Male |
| Shamus | Supplanter | Male |
| Shan | Coral | Female |
| Shanahan | Wise One | Male |
| Shane | Variant Of Shaun From John. | Male |
| Shanley | Old Hero | Male |
| Shannon | Little Old Wise One | Male |
| Shawn | From The Shady Grove | Male |
| Shawna | Variant Of Shaun. | Female |
| Shayla | Fairy | Female |
| Shayne | Variant Of Shaun From John. | Male |