# | Name | Origin | Meaning | Gender | Save |
456 | Llyr | Welsh | From the sea. | M | |
457 | Llyweilun | Welsh | Lion. | M | |
458 | Luc | Welsh | Welsh form of Luke 'light'. | M | |
459 | Lug | Welsh | Welsh form of Luke 'light'. | M | |
460 | Lyn | Welsh | Diminutive of Llewellyn: Leader. Lion-like. | M | |
461 | Mabon | Welsh | Legendary son of Modron. | M | |
462 | Mabsant | Welsh | Legendary son of Caw. | M | |
463 | Madawc | Welsh | Beneficent. | M | |
464 | Madawg | Welsh | Legendary son of Teithyon. | M | |
465 | Maddoc | Welsh | Beneficent. | M | |
466 | Maddock | Welsh | Beneficent. | M | |
467 | Maddockson | Welsh | Son of Maddock. | M | |
468 | Maddocson | Welsh | Son of Maddock. | M | |
469 | Maddog | Welsh | Beneficent. | M | |
470 | Maddox | Welsh | Son of Maddock. | M | |
471 | Madoc | Welsh | Fortunate. Beneficent. | M | |
472 | Madog | Welsh | Beneficent. | M | |
473 | Mael | Welsh | Legendary son of Roycol. | M | |
474 | Maelgwyn | Welsh | Prince of the hounds. | M | |
475 | Maelwys | Welsh | Legendary son of Baeddan. | M | |
476 | Mallolwch | Welsh | Legendary king of Ireland. | M | |
477 | Manawydan | Welsh | Legendary son of LIyr. | M | |
478 | March | Welsh | Legendary son of Meirchywn. | M | |
479 | Marvin | Welsh | Variant of Mervyn: Form of Merlin: From the sea fortress. | M | |
480 | Marvyn | Welsh | Variant of Mervyn: Form of Merlin: From the sea fortress. | M | |
481 | Mathias | Welsh | Gift of God. | M | |
482 | Mawrth | Welsh | Welsh form of Mars, god of war. | M | |
483 | Medyr | Welsh | Legendary son of Medyredydd. | M | |
484 | Meilyg | Welsh | Legendary son of Caw. | M | |
485 | Meirion | Welsh | Name derived from the old county of Merionethshire. | M | |
486 | Menw | Welsh | Legendary son of Teinkaedd. | M | |
487 | Mercher | Welsh | Welsh form of Mercury, messenger of the gods. | M | |
488 | Meredith | Welsh | Guardian of the sea. Great chief. This name can be given to children of either gender, but is more common among girls. | M | |
489 | Meredydd | Welsh | Guardian of the sea. | M | |
490 | Meridith | Welsh | Guardian of the sea. | M |