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

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.

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.

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.

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

If you're looking for an unusual alternative to all those Rose names, Rhoswen might be a good choice. This name has the soft sounds we've come to love from the Welsh language but is still not as familiar as Bronwen and Rhiannon.

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.

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.

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.

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

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

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.

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.

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

A bit of a tongue-twister.