| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 581 | Quinlan | Gaelic | Shaped as a well. Counsel. Variant of Quinn. | M | |
| 582 | Quinn | Gaelic | Counsel. A Scottish and Irish surname used as a given name from very ancient times. | M | |
| 583 | Quinnell | Gaelic | Counsel. Variant of Quinn. | M | |
| 584 | Rabhartach | Gaelic | Wealthy. | M | |
| 585 | Rafferty | Gaelic | Wealthy. | M | |
| 586 | Raghallach | Gaelic | Valiant. | M | |
| 587 | Raghnall | Gaelic | Mighty power. | M | |
| 588 | Raibeart | Gaelic | Gaelic form of Robert. | M | |
| 589 | Raonull | Gaelic | Mighty power. | M | |
| 590 | Riley | Gaelic | Valiant. | M | |
| 591 | Rioghbhardan | Gaelic | Royal bard. | M | |
| 592 | Riordan | Gaelic | Royal bard. | M | |
| 593 | Risteard | Gaelic | Gaelic form of Richard. | M | |
| 594 | Roane | Gaelic | Red-haired; red. | M | |
| 595 | Rohan | Gaelic | Red-haired; red. | M | |
| 596 | Ron | Gaelic | Rules with counsel. Form of Ronald from Reynold. | M | |
| 597 | Ronal | Gaelic | Rules with counsel. Form of Ronald from Reynold. | M | |
| 598 | Ronald | Gaelic | Rules with counsel. Form of Reynold. | M | |
| 599 | Ronell | Gaelic | Rules with counsel. Form of Ronald from Reynold. | M | |
| 600 | Ronn | Gaelic | Rules with counsel. Form of Ronald from Reynold. | M | |