Rarely heard in the US, Aneurin is best remembered in the UK as the Welsh politician, Aneurin "Nye" Bevan, who was instrumental in setting up the National Health Service when he was Minister for Health.

Gentle and poetic and most often heard in Wales, Emlyn joins Emrys as soft, interesting alternatives to popular Em- names like Emmett and Emery. Sometimes viewed as a Welsh variation of Emiliano, it more likely comes from the Welsh em and glyn meaning "around the valley" (or possibly from llyn, giving it the meaning "around the lake").

The delicate and haunting Welsh Rhonwen is still a rarity in the U.S., where her English version Rowena is better known, but would be a lovely choice for any parent in search of a name that was both unusual and traditional, classically feminine yet strong.

Rarely heard outside of Wales, Arianwen combines the pretty Welsh element gwen with the silvery arian, giving it a metallic and shining meaning. The name is sometimes listed as one of the daughters of the legendary fifth-century king and saint, Brychan Brycheiniog.

Aeron was possibly a minor Celtic god of war, and is definitely a river in modern-day Wales.

Llyr is a name with a great meaning and a lovely sound, but that sound is going to be next to impossible to get non-Welsh speaking people to pronounce (google the double L sound in Welsh). If you are outside Wales, you may wish to consider the Irish alternative Lir, which has the same meaning and an easier sound.

Tanwen is a far more singular and colorful alternative to Bronwen.

A sweet Marian name consisting of Mair, the Welsh form of Mary, and gwen, meaning "blessed, white".

Very popular in Wales; this could make a nice middle name in honor of a Grandpa Glenn.

This rare sixth-century saint's name has a modern, merry feel.

Tegwen is a Welsh name that balances between clunky and mystical, sweet and tough. Created back in the 19th century by blending the element teg "beautiful, pretty", with the element wen "fair, white, blessed", it may appeal to those who enjoy Teagan, Gwen, Gwendolyn, and Tesni.

Tolkien may have been inspired by this unisex name of a Celtic goddess of war. Welsh poet Dylan Thomas named his daughter the variation Aeronwy. With goddess names so hot for baby girls, this ethereal choice is one to consider.

This name of a legendary Welsh prince could serve as a more original alternative to Adam or Aidan, though it does sound a tad chemical.

Eigra is a name with a great mythological and literary past - it is the Welsh version of Igraine/Ygraine, who was the mother of King Arthur.

Also spelled Madog, which was the name of an early Welshman, Madog ap Owain Gwynedd, reputed to have been the first European to discover North America in 1155. Maddox, the name of Angelina Jolie and Brad Pitt's oldest child, is a stronger and more familiar choice.