Lars is a perfect candidate for a cross-cultural passport: it has been heard often enough here to sound familiar and friendly, yet retains the charisma of a charming foreigner.

The name of several ancient kings and princes of Ireland, Tadhg became so common at one point that it was used to represent a kind of Irish Gaelic everyman, or man in the street, as Paddy and Mick would later. Tadhg has seen a major resurgence in recent years and is also now ranked in England.

It is sometimes used as the Irish equivalent of Timothy and is also anglicized as Teague and Thaddeus. Tadleigh and Thad are pet forms. Pronunciation is like tide ending with a g or like the first syllable of tiger.

Crispin, which was introduced into the mainstream by actor Crispin Glover and which means "curly-haired" in Latin, has an image very much like its first syllable: crisp, autumnal, and colorful.

Fresher, brisker and, yes, cooler than Summer or Autumn or Spring, Winter is now a full-fledged female choice, especially since Nicole Richie and Joel Madden used it for daughter Harlow's middle name, and Gretchen Mol picked it as her daughter's first, as did media mogul Sean Parker. Winter continues to be the preferred spelling and has risen in popularity significantly over the past few years.

Parents who have tired of Sean are now contemplating Seamus, the Irish form of James, which has a lot more substance and verve.

Craig is a single-syllable baby-boomer name, still common in its native Scotland, but most modern Americans would prefer something like Kyle.

When aspiring British writer Sadie Smith decided to change her name to the more distinctive and zippy Zadie at the age of fourteen, this attention-magnet name was born. But though it might sound like a modern initial-switch, Zadie was actually Number 539 in 1881, remaining in the Top 1000 for almost thirty years.

Could there be a more poetic name than Sonnet? Actor Forest Whitaker was inspired to choose it for his daughter.

Cullen is an appealing Irish surname name that upped its cool factor considerably when it became the Twilight family name of Edward et al. It's considerably less popular than it was at its peak in 2010, but is still widely used.

The name of the longest river in the British Isles rose to the US Top 25 for girls in the 1970s and the Top 100 for boys, but has fallen off the Top 1000 for both genders. At the latest count, the name Shannon was given to about 200 babies in the US, about a third of those boys. As a favorite Irish name, Shannon has now been supplanted by newcomers such as Saoirse and Seanan.

This early Scottish title -- known to us via Shakespeare's Macbeth -- has recently surfaced as a baby name possibility, familiar sounding through its similarity to names like Zane and Wayne.

Tiernan is the slightly edgier and sharper cousin of Kiernan. This is one Irish surname that is attractive but distinctive; Tierney is another, related, option.

This ancient royal Scottish name and its equally-correct spelling French variation Stuart had a brief vogue in midcentury America--it was Number 286 in 1955--dropped off the list completely in the nineties.

One of the best known of the Irish girls' names, thanks to singer Sinead O'Connor. Though it's still in the Irish Top 100, it's no longer quite as fashionable in Ireland as Aoife or Aisling. But by now everyone in the Western World knows it's pronounced shin-aid and so would have no trouble fitting in on an American playground.

Always the less common spelling of Irish classic Neil, Neal has been on a fifty-year slide, and now doesn't even make the Top 1000. It has a streamlined, surnamey appeal in this spelling.

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.

Conroy is one Con name that feels a bit dated, though perhaps it's so far out it's coming in? Worth consideration if you like Connor but feel it's too widely used.

Now that Kimberly is no longer one of the top girl names, Kim or long form Kimball feel more gender neutral.

Few people would have considered the surname of this famous Victorian poet as a first name until Russell Crowe chose it for his son in 2006. But, as a rhythmic three-syllable patronymic, Tennyson has a lot going for it, not least of all the appealing nickname Tenny; it would make a novel choice for the son of a Dennis.