A classic in its native Scandinavia, Axel has a cool rock 'n' roll flavor in the US, thanks to Guns N' Roses' Axl Rose (born William). With its distinctive letter 'x', it has an effortlessly cool vibe about it, and is currently growing in popularity.

Paxton stands out from a lot of other two-syllable surname names for two reasons: the dynamic letter X in the middle, and its admirable peace association, providing the great nickname Pax.

Solomon, a name that evokes wisdom and peace, is an Old Testament name that, along with other patriarchal classics, is finally beginning to shed its long white beard and step from the pages of the Old Testament into modern nurseries.

The mostly Americanized version of Geoffrey was a trendy mid-century hit, with nickname Jeff the epitome of cool. Jeffrey entered the pop list in 1934 and was a Top 20 name from the mid-fifties to 1978.

Serene Irene, the name of the Greek goddess of peace and one of the most familiar Greek goddess names, was hugely popular in ancient Rome and again in the United States a hundred years ago.

Salem is a Biblical place name in Canaan, believed to be the same as Jerusalem, as well as the Massachusetts town famous for its late 17th century witch trials. Salem is also a popular first name in its own right throughout the Arabic world.

All names Cas are cool right night, from Cassius to Cassian to Caspian to, yes, Casimir and its Latin form Casimiro. An attractive possibility in this appealing group.

This traditional Germanic name hasn't been on the U.S. list since 1958, but perhaps due to the mythic power of painter Frida Kahlo, parents are beginning to show some interest in it.

This is the Indian version of the Hindi word meaning peace.

Guns 'n' Roses musician Axl (born William) Rose created this name by dropping a vowel, a la Barbra Streisand. The traditional Axel is more popular, though celebrity parents Fergie and Josh Duhamel deliberately chose the Axl spelling to honor her rock hero.

Wilfred is one of those Old Man Names that still sounds fusty in the US but is fashionable in the UK. It comes with readymade short forms Will, Wilf, or Fred and might make an adventurous alternative to the ubiquitous William. The central character of Walter Scott's Ivanhoe is the knight Wilfred of Ivanhoe while Wilfred Owen is a well-known British poet, noteworthy for his war poetry.

A warm and musical name with a lovely meaning. There is a popular song called Dembe by famous Ugandan artist named Bobbi Wine, who also ran for President.

Godfrey was very popular in the Middle Ages, but today you're more likely to hear it as a surname than a first name. It has a solid, old-man charm, but a couple of possible deal-breakers: the first syllable being God, and no obvious nickname. Goff, maybe? For a different feel, we also like the Italian artist's version Giotto.

A soft and interesting Hebrew name long popular in France, where it has ranked in the Top 400 since 1986 (as Salomé). Ex-ER star Alex Kingston named her daughter Salome Violetta.

Kazuko is a Japanese feminine name that combines the character kazu ("harmony") with ko ("child"), creating a name that in total symbolises a child of peace. In Japan, names ending in ‘ko’ are rarely used as they now sound oldfashioned. More ‘trendy’ names are Kazumi (which means beautiful peace and can me used on both boys and girls), Kazuki (a masculine name meaning hope of peace) and Kazuo (also a masculine name meaning man of peace). The emphasis is on the first syllable, so it is said "KA-zoo-ko".

Truly multi-cultural, Ira can be: a Russian short form of Irina, meaning "peace"; a gender-switch of the Hebrew male name Ira, meaning "watchful"; a modern Greek and Finnish form of Hera, meaning "hero" or "protectress"; a Sanskrit name meaning "earth" or "enjoyment"; and a Basque nature name meaning "fern", from the word iratzea.

The dynamic personality and paintings of Mexican artist Frida Kahlo have inspired growing numbers of parents to resurrect this form of the name. It does much better in certain European countries, especially in Denmark and Norway. The Frieda and Freida spellings were more popular in the US until the middle of the 20th century.

Rarely, if ever, heard outside the Jewish community.

The ultimate dad name.

Casimir, a traditional name of Polish kings, could do quite well these days as we see the rise of Caspian, Cassius, Castiel, et. al. Like Leopold and Laszlo, Casimir is strong and worth considering if you've got an adventurous streak — and bet your son will too.