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.

Country singer Travis Tritt is partial to the letter T for his children's names: he has a Tyler, a Tristan, and a son named Tarian. Tarian is a unisex Welsh name which, though used more for girls in Wales, would be perfectly acceptable here for a boy.

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

Penrose – an ancient place-name and surname derived from several villages in Cornwall, Wales, and the Welsh border country of England – would make for an even more unexpected alternative to quirky nature name Primrose. Intuitive nicknames Penny or Rosie make it feel more wearable.

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.

Striking name of a legendary princess and a Welsh river that feels both moody and modern. It is currently popular in Wales.

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

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

A bit of a tongue-twister.

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.

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.

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.

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.

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.