Lucia is a lush, rich Latinate equivalent of Lucy, popular in Spain and throughout Latin America and also a cross-cultural favorite. You might be surprised to know that Lucia has ALWAYS ranked among the Top 1000 girl names in the US, though she's really taken off only since the turn of this century.

Orla is an Irish name closely associated with the high king Brian Boru, as it was the name of his sister, daughter and niece. It was very popular in the Middle Ages – the fourth most popular name in twelfth century Ireland – and has become popular again in Ireland, Scotland, England and Wales today. In Irish, the name is commonly spelled Orlaith or Orlagh.

No, the pronunciation--ro-SHEEN--isn't immediately obvious to the non-Gaelic viewer, but the sound of this shiny Irish version of Rose is pretty enough to make it worth considering. Very popular in its native Ireland, it's one of many Irish girl names finding a wider audience. Earlier generations Anglicized at as Rosaleen, but we stay stick to the original.

Caoimhe, pronounced (more properly) kwee-va or kee-va, is a pretty and distinctive Gaelic name but one that could well lead to no end of confusion outside the Irish community. Even in its native habitat, it is sometimes spelled Keeva.

Though Dara was an (extremely wise) male figure in the Bible, this name feels mostly feminine to modern Americans. The Irish Gaelic version, Darragh, is well-used in contemporary times for boys.

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.

More commonly seen here as Anya, this traditional yet unique Irish name belonged to the queen of the Munster fairies and is sprinkled throughout Irish folklore as an early Celtic goddess of summer and prosperity. One of the most popular baby names in Ireland, Aine's spelling and pronunciation might seem simple but could prove confusing in the U.S.

Simple and pretty and user-friendly, the Welsh Sian was used by U2's Dave "the Edge" Evans for his daughter. In Welsh, it is also spelled Siân.

Arcelia is an undiscovered Spanish treasure worth considering.