Kellen is German in origin and Irish in spirit. Kellen has fallen a bit in popularity for boys since its peak in 2012, but it has possibilities for girls too. In fact, Kellen's similarity to such feminine names as Helen, Ellen, and Kelly makes it feel more unisex or even female, though Twilight actor Kellan Lutz has done much to popularize this name for boys.

Kellan Lutz is the attractive young actor who plays Emmett Cullen in the Twilight series.

Cael is the name of the angel of the zodiac sign of Cancer and also of a warrior of Irish mythology. Its ascendance to the Top 1000 over the past decade probably has to do with its similarity to Cale and Kale (and Kyle and Cayden etcetera).

One of several Anglicized forms of Caolán, this spelling is borrowed from the Old Irish root, cáel.

Keeley is well-used in modern Ireland, also found as Keely and Keela. The boys' form is Keelan. Largely unknown in the US, this could make an interesting update for Kelly or Kaylie or Kylie. A famous bearer is actress Keeley Hawes.

Keely is well-used in modern Ireland, also found as Keeley and Keela. The boys' form is Keelan. Largely unknown in the US, this could make an interesting update for Kelly or Kaylie or Kylie -- though it might ultimately prove to close to one of those trendy names.

An Irish last-name-first-name that could make a child feel distinctive, while still having the regular guy nickname of Quinn. Christine Taylor and Ben Stiller spelled their son's name Quinlin.

A Top 100 choice in Northern Ireland, Caolán shares many fashionable sounds with names like Cayden and Callan, but remains virtually unknown in the US.

Keelan is the Anglicized, phonetic form of the more traditionally-spelled Caelan, also in use. While this name is said by many sources to be unisex, in practice in modern Ireland it is only given to boys. An interesting, accessible choice largely unknown in the US.

This name is growing in popularity, partly because of its tie to hipster musician Sufjan Stevens; is also related to Abu Sufyan, a figure from early Islamic history.

Variant of Caelan

Is Keela distinct enough from Kayla to sound fresh and new? Maybe, though its similarity to the trendy cluster of names that also includes Kaylie and Kylie and Kelly may be enough to turn you off. Keela, a relative of the less serious Keely and the male Keelan, is used in modern Ireland.

Form of Sufyan mainly found in North Africa

A cool-soungin ancient Armenian name which has belonged to several historical kings.

Quinlan is an Irish surname name given to a few dozen baby girls in the US each year. With the success of Quinn as a girls' name, Quinlan and its variant spellings Quinlin and Quinlyn might follow behind.

Narin in Turkish and Narîn in Kurdish, this name has a sleek and sophisticated sound.

Malay form of Sufyan

A variant of Caelan, from a Gaelic name meaning "slender".

A Top 100 choice in Northern Ireland, Caolán shares many fashionable sounds with names like Cayden and Callan, but remains virtually unknown in the US.

This is the Turkish form of Alif, the name of the first letter of the Arabic alphabet. Actor Natalie Portman gave another spelling to her son, Aleph. Elif can also mean "slender", from the Turkish phrase elif gibi, literally "shaped like Elif."