Search Welsh Baby Names
| # | Name | Origin | Meaning | Gender | Save |
| 501 | Mihangel | Welsh | Welsh form of Michael 'God like'. | M |  |
| 502 | Mil | Welsh | Legendary son of Dugum. | M | |
| 503 | Moesen | Welsh | Welsh form of Moses 'from the water'. | M | |
| 504 | Morcan | Welsh | Dwells near the sea. | M | |
| 505 | Morcar | Welsh | Dwells near the sea. | M | |
| 506 | Mordwywr | Welsh | Sailor. | M | |
| 507 | Moren | Welsh | Legendary son of Iaen. | M | |
| 508 | Morgan | Welsh | Bright sea. Dwells near the sea. | M | |
| 509 | Morgannwg | Welsh | From Glamorgan. | M | |
| 510 | Morgen | Welsh | Of the sea. Surname. | M | |
| 511 | Morthwyl | Welsh | Hammer. | M | |
| 512 | Morvran | Welsh | Legendary son of Tegid. | M | |
| 513 | Myrddin | Welsh | Welsh form of Merlin: Hawk. From the sea fortress. | M | |
| 514 | Myrick | Welsh | Dark-skinned; A Moor. Form of Maurice. | M | |
| 515 | Naw | Welsh | Legendary son of Seithved. | M | |
| 516 | Neb | Welsh | Legendary son of Caw. | M | |
| 517 | Neifion | Welsh | Welsh form of Neptune 'god of the seas'. | M | |
| 518 | Nerth | Welsh | Legendary son of Cadam. | M | |
| 519 | Nerthach | Welsh | Legendary son of Gwawrddur. | M | |
| 520 | Neued | Welsh | Legendary father of Tringad. | M | |
| 521 | NewIyn | Welsh | Dwells near the new pool. | M | |
| 522 | Newlin | Welsh | Dwells near the new pool. | M | |
| 523 | NewyddIlyn | Welsh | Dwells near the new pool. | M | |
| 524 | Ninian | Welsh | St. Ninian was a 5th century bishop sent to Scotland to convert the Picts to Christianity. | M | |
| 525 | Nissyen | Welsh | Legendary son of Eurosswydd. | M | |
| 526 | Nye | Welsh | Diminutive of Aneurin: Uncertain origin, but may be derived from the Latin Honorius meaning man of honour, or from the Welsh eur meaning gold. | M | |
| 527 | Nynnyaw | Welsh | Legendary son of Beli. | M | |
| 528 | Odgar | Welsh | Legendary son of Aedd. | M | |
| 529 | Ofydd | Welsh | Welsh form of Ovid 'a Roman poet'. | M | |
| 530 | Ol | Welsh | Legendary son of Olwydd. | M | |
| 531 | Olwydd | Welsh | Tracker. | M | |
| 532 | Ondyaw | Welsh | Legendary son of a French Duke. | M | |
| 533 | Oswallt | Welsh | Welsh form of Oswald 'strength from God'. | M | |
| 534 | Owain | Welsh | Young warrior. | M | |
| 535 | Owein | Welsh | Young warrior. | M | |
| 536 | Owen | Welsh | Young warrior. Also can be a variant of Eugene: Well-born. | M | |
| 537 | Owin | Welsh | Young warrior. | M | |
| 538 | Owyn | Welsh | Young warrior. | M | |
| 539 | Owynn | Welsh | Wellborn. Form of Ewan. | M | |
| 540 | Padrig | Welsh | Welsh form of Patrick 'noble'. | M | |
| 541 | Pany | Welsh | Son of Harry. | M | |
| 542 | Parry | Welsh | Son of Harry. | M | |
| 543 | Pedr | Welsh | Welsh form of Peter 'rock'. | M | |
| 544 | Peissawg | Welsh | Legendary king of Brittany. | M | |
| 545 | Pembroke | Welsh | Lives in the headland. | M | |
| 546 | PenIlyn | Welsh | From the lake's headland. | M | |
| 547 | Penn | Welsh | From the peak. | M | |
| 548 | Penvro | Welsh | From pembroke. | M | |
| 549 | Peredur | Welsh | Legendary son of Evrawg. | M | |
| 550 | Perry | Welsh | Son of Harry. | M | |