Here is a list of popular Welsh names for children and their meaning
Boys:
| Aled | A river and lake in Clwyd |
| Alun | A river in Clwyd |
| Aneirin | The name of an early Welsh poet |
| Arfon | An area in Gwynedd around Caernarfon |
| Arthur | A Welsh king famous for his bravery in battle and his horsemanship |
| Bedwyr | One of king Arthur’s right hand men |
| Bleddyn | Wolf |
| Brychan | This name means freckled, and was the name of the ruler from which the name of Breckonshire is derived |
| Cai | An officer of Arthur’s court |
| Caid | The king of Esyllwg who ruled South East Wales from Porthceri, Barry and fought bravely against the Romans |
| Ceri | This name is derived from the word for love. It can be used for either a boy or a girl. |
| Clwyd | A territory in North East Wales |
| Cybi | A saint whose name lives on in Caergybi (Holyhead) |
| Dafydd | A saint |
| Deiniol | A sixth century saint regarded as the first bishop of Bangor |
| Dewi | The patron saint of Wales whose death is celebrated on 1 March every year |
| Dyfed | A territory in South West Wales |
| Dyfrig | The name of an early Welsh saint |
| Dylan | A sea god from mythology |
| Einion/Eynon | Anvil |
| Eirian | This name is derived from the word for silver. It can be used for either a boy or a girl. |
| Eurig | This means ‘golden ruler’. |
| Euryn | A golden boy |
| Garan | Heron |
| Gareth | Benign, caring |
| Geraint | This is the name of the hero of one of the romances in the Mabinogion. |
| Gruffydd | This name means ‘strong lord’. It is also used in the diminutive form of Guto. |
| Gwyn | White, holy, fair |
| Gwynedd | A territory in North West Wales |
| Hedd | Hedd |
| Hefin | This name derives from the word for summer. |
| Huw | Warm hearted |
| Hywel | Eminent. Hywel Dda was a 10th century king whose name is associated with the Welsh Laws |
| Idris | The name of the mythical giant that gave his name to the mountain Cader Idris |
| Iestyn | A Welsh form of Justin, meaning fairness. |
| Ieuan/Ifan/Ioan | Along with Iwan, these are all Welsh forms of John. A diminutive form is Ianto |
| Llwyd | One with grey hair |
| Iolo or Iori | Diminuatives of Iorwerth |
| Iorwerth | Worthy lord or worthy of God |
| Irfon | A river in Powys where Llywelyn ap Gruffydd, the last independent prince of Wales, died in 1282 |
| Iwan | Form of John |
| Llywelyn | Leader, prince |
| Meilir | This name is derived from the ancient British for ‘great king’. |
| Meirion | The Welsh form of Merlin. A mythological poet and wizard |
| Meredydd | Great lord |
| Morgan | An old name which could mean either ‘born great’ or ‘born of the sea’. This was the name of the early Welsh ruler who gave his name to Glamorgan |
| Myrddin | The Welsh form of Merlin. A mythological poet and wizard |
| Nefydd | Heavenly |
| Osian | The name in its Welsh form of the hero who features in the Irish love story of Niamh and Oisin |
| Owain | Well-born |
| Pedr | Stone or rock |
| Peredur | The name of one of King Arthur’s knights |
| Rhisiart | The Welsh form of Richard, which means ‘strong ruler’ |
| Rhodri | An old Celtic name which literally means ‘king of the wheel’. Rhodri Fawr was the name of the king who united most of Wales under his rule in the ninth century |
| Rhun | Loved |
| Rhydderch | This means ‘generous lord’. Rhydderch Hael was the ruler of the ancient British kingdom of Rheged, which corresponds to the modern Cumbria. |
| Rhys | King |
| Seiriol | A saint who gave his name to Ynys Seiriol (Puffin Island) off Anglesey. |
| Steffan | A Welsh form of Stephen |
| Tristan | The name of the hero associated in Welsh with the story of Tristram and Isolde |
| Wyn | White, pure |
| Ynyr | Ynyr |