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Flynn, a charming Irish surname, is still used only quietly, despite its easygoing, casual cowboy charm, unlike Finn which is a star of this genre. Flynn was the choice of Orlando Bloom and Miranda Kerr for their baby boy, and is also the middle name -- used as his first -- of a son of Miranda's fellow supermodel Elle Macpherson, of Gary Oldman's son Gulliver and Marley Shelton's daughter West.

Gage was part of the craze for one-syllable surnames, with associations to tasty green gage plums and the mathematical gauge.

Jagger is a swaggering Rolling Stone of a name that's been picked up by a number of fellow celebs, including Lindsay Davenport and Brett Scallions--while Soleil Moon Frye pulled a gender switch when she bestowed it on her daughter. It's edgy with a touch of danger.

Eighties star Judge Reinhold (born Edward Jr. , he was given this nickname at the age of two weeks) made this possible, but it could cause a lot of confusion.

Justice, one of the rare virtue names for boys, entered the popularity ranks in 1992, and has remained on the list ever since. Parents' search for names implying virtue has led to a mini-revival of this long-neglected name in both its German homonymic form, Justus, and as the word itself. Steven Seagal was ahead of the curve when he used it back in 1976.

More unusual than Justin, less word-like than Justice, this New Testament name could make an intriguing choice. After being off the popularity lists from 1904 to 1993, it is now being used in steady numbers.

Killian – aka Cillian – is a spirited yet resonant Gaelic name that was borne by several Irish saints and could make a distinctive replacement for the dated Kelly. Kylian is another spelling that's gaining traction, thanks to French soccer star Kylian Mbappé. Possible downsides: an unsavory first syllable and a connection to the trendy brew.

Madden is an Irish surname relative of Madigan rising through the charts thanks to its trendy two-syllable, -en ending sound along with its appeal to Madden Football video game-playing dads. John Madden is a former pro football player who went on to coach the Oakland Raiders and become a popular NFL commentator. Madden is also the surname of groovy Nicole Richie baby daddy Joel Madden.

Miles, which has a permanent veneer of cool thanks to jazz great Miles Davis, is a confident and polished boys' name that's an American classic. Always ranking in the US Top 1000, it's been drifting up the charts for the past half century but has never been TOO popular.

A lot of attention was drawn to this name when Kim Kardashian and Kanye West announced it as the name of their baby daughter, making it instantly unisex.

Orion is a rising star, with both mythical and celestial overtones.

Now that many dogs are named Max, it's safe to use this sleek, solid, regal name again for your child. And with the charm of its final x, its regal meaning, and its offbeat simplicity, Rex is definitely one to consider.

Rhett has been more tied to Gone with the Wind than even Scarlett, but now we're hearing rumblings of its finding new and independent favor among parents, perhaps emboldened by the growing popularity of Scarlett.

Rider is a rock-and-roll baby name, in every sense of the term, though usually spelled Ryder, as in the sons of Kate Hudson and John Leguizamo.

Rio is a reductive ranchero place-name with an attractive Tex-Mex lilt. No Doubt's Tom Dumont has a son named Rio Atticus.

With the prevailing popularity of Samuel, some parents are considering this more (literally) powerful biblical name, which shares the desirable nickname of Sam.

Sawyer is a surname with a more relaxed and friendly feel than many others, and is one of the hottest occupational names right now, with the Nameberry seal of approval. Sawyer is becoming one of the top unisex names. Both Sara Gilbert and Diane Farr used Sawyer for their daughters, while it was given a boost as a boys' name by the character Sawyer on Lost, an alias for the character really named James Ford.

Vaughn, also commonly spelled Vaughan, has been used quietly over the years, reaching a peak of Number 349 in 1949. It is now in the process of rediscovery, being seen as a good Sean alternative or an updated way to honor an ancestral Paul (which also means small).

When Marion Michael Morrison became John Wayne around 1930, his last name took on an air of cowboy cool that lasted about thirty years, but by now it's strictly a dad or granddad name.