Sleek, sharp, and soulful, Isolde is the German form of Iseult, the fabled lover of Tristan in the Arthurian romances. First appearing in the 12th-century, the name was fairly popular in the form of Iseult, Yseut, Yseult, and Ysolt, however, it wasn't until the 19th-century that this form began to catch on, after the composer Richard Wagner used it for his 1865 opera (and for his own daughter!)

Guinevere was the name of the beautiful but ill-fated queen of Camelot, for so many years eclipsed by its modern Cornish form Jennifer. Today, Guinevere could be a cool possibility for adventurous parents intrigued by this richly evocative and romantic choice.

Most of us had never heard this lovely Welsh name with links to the moon until we heard the 1976 smash hit Fleetwood Mac song of that name, with lyrics by Stevie Nicks. That same year it popped onto the U.S. Top 1000 at Number 593.

Morgan has long been a traditional Welsh male name, a variant of the Old Welsh name Morcant, from the Welsh elements mor, meaning "sea" and cant, "circle." The female Morgan is unrelated to the male version—it is a name from Arthurian legend created for Morgan le Fay, King Arthur's half-sister and famed sorceress. Her name comes from Morgen, an Old Welsh name meaning "sea-born," and is related to the Irish name Muirgen.

Megan originally evolved from Meg, which itself derived as a nickname for Margaret. Margaret ultimately comes from the Greek word margarites, meaning "pearl." Megan is no longer a common nickname for Margaret—it is most often used as a full name. Other spellings include Meghan, Meagan, Megyn, and Meaghan.

This Welsh nature name that can be pronounced exactly like the male Ira. Or, to avoid confusion, you could just name her Snow.

Meredith is a soft, gentle-sounding name with subtle Welsh roots. Although originally a boys’ name , Meredith is used mainly for girls now.

The sassy, steel magnolia appeal of Oscar-winning Reese (born Laura Jeanne—Reese is her mother's maiden name) Witherspoon has single-handedly propelled this formerly boys’ name into girls' popularity.

Seren is a top girls' name in Wales – and a lovely choice almost unknown elsewhere. Seren, in the Sirona form, was an ancient goddess of the hot springs.

Common name in Wales that's all but unknown in the U.S. Certainly an attractive choice ripe for export. In the UK it sits at Number 330.

Anwen is one of the simplest and best of the classic Welsh girls' names, more unusual than Bronwen but with the same serene feel.

This early Welsh saint's name is unusual and lovely, waiting to be discovered. Saint Arianell was a member of the Welsh royal family who was possessed by a spirit which was exorcised by Saint Dyfrig, who became Arianell's spiritual teacher.

Unusual floral name which would be perfect for a spring baby girl, if you can pronounce the Welsh double L correctly. It's a tricky sound for non-native Welsh speakers, kind of halfway between an H and an L.

Very popular in Wales, this perfectly nice name's only problem is its similarity to the dated Beth Ann. But if you're looking to honor an ancestral Elizabeth with a distinctive rare choice, Bethan might be on your short list.

A mythological Welsh name with an intriguing sound, Ceridwen appears in several Welsh legends, in which she is an an enchantress and the owner of the cauldron of poetic inspiration. She is also associated with the great bard, Taliesin, with one 16th-century tale recounting that when her servant consumed a potion of wisdom, intended for Ceridwen's son, Ceridwen swallows the servant, who is then reborn through her as the bard.

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.

A sweet yet substantial name of Welsh origin, Nerys has the fresh feel of Carys, but the vintage charm of Mavis, Morag, and Lois. Likely borrowing from the Welsh element nêr meaning "lord, chief", Nerys is a feminization and could then mean "lady".

Popular in Wales, but likely to be mispronounced as Ryan here.

Evanna is the name of a Harry Potter actress who pronounces it ee-vah-na. This might be considered another international feminine form of the many variations of John; Ivana, Giovanna, and even Joan are cousins of Evanna. It could also be a compound name, combining Eva and Anna.

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.