As trendy as the chic Colorado ski resort, with a hint of whimsy from the shimmering trees, Aspen has been climbing the charts for boys since the early 90s. While it has always been more popular for girls, it could work for a boy too.

A light and breezy nature name that's currently in style limbo, despite its pleasant meaning.

Acacius is a Latinized form of the Ancient Greek Akakios and can be interpreted to relate to the same root as the name Acacia, for the thorn bush, or Akakios which means "not evil." With the modern taste for ancient names that end in "us," this obscure but attractive choice may have a chance of new life. Acacius is the name of three early saints.

Hart could be the hero of a romantic novel, but on the other hand, it's short, straightforward, and strong sounding. The most famous bearer of the name was tragic poet Hart (born Harold) Crane, but it also has musical cred via Lorenz Hart, of the classic Rodgers & Hart songwriting duo and a literary tie to playwright Moss Hart.

Colt is the kind of unconventionally macho name that is so trendy right now, because of or in spite of its association with horses and guns. A rent study of voter names by political party found that more than 80 percent of the voters named Colt vote red.

Nature names like Ocean and River are flowing back into favor, especially with nature lovers and green-oriented parents. In 2024, it was given to 483 boys and 325 girls, making this a unisex favorite in the US, while in the UK, it is considerably more popular for girls.

Perseus is a godly Greek hero (he was a son of Zeus) whose ancient name just might have modern possibilities along with other so-old-they're-new-again names such as Atticus and Orion.

Ash has Southern charm plus the arboreal-nature appeal. Plus your little boy will prize Ash as the name of the hero of the Pokemon cartoons. Ash can also be a dashing short form of Asher, Ashton, or any other "Ash" name.

Originally a form of the saint's name Blaise, though now more likely to be a hot word name used for both sexes, though heavily weighted toward the boys. It has been in the boys' Top 1000 since the year 2000. On the pop culture side of things, Blaze Bayley is a singer and musician who has been connected to the bands Wolfsbane and Iron Maiden.

Fresh and surprising on a boy – and how can you not love the cool classic nickname Will?

Although Greek in origin--in the fourth century, a bishop by that name established the principles of the Greek Orthodox Church--Basil for years took on the aura of aquiline-nosed upper-class Britishness of Sherlock Holmes portrayer Basil Rathbone, then spiced with the fragrant aroma of the herb that entered with the Pesto generation.

In one recent year there were 60 baby girls in the US named Lark....and only eight baby boys. But there's no reason this bird name can't also be masculine, especially given that Robin is making a comeback for boys and Sparrow is a notable starbaby boy (he's Nicole Richie and Joel Madden's son).

Zev is a short, simple, animal name that may relate to the Old Testament Ze'ev -- except he was a villainous character.

Oisin is one of the most popular Irish baby names in its native land, though largely unknown in the US. The original Oisin was the mythological son of Finn McCool and Sadb, the goddess who was changed into a deer. A legendary war hero and poet, Oisin had a name that is also reminiscent in sound of the ocean. Pronounced correctly, this name has an attractive sheen.

Mars is a name with interesting potential, ticking the boxes as a mythological name, a space name, and a single syllable choice ending in -s. For parents wanting something unexpected, Mars could work as an alternative to popular Brooks, Max, Atlas, or Miles - and given to around 124 boys - and 27 girls - in a recent year, it is unusual but recognisable.

Long heard as a last name, as in venerable poet Robert, U.K. talk show host David, British actress Sadie and old Jack Frost, Frost has suddenly entered the scene as a possible first, along with other seasonal weather names like Winter and Snow.

Sky is an ambigender nature name that was first legitimized as the character of Sky Masterson in the 1950 musical Guys and Dolls, played in the film version by Marlon Brando. It's a name we appreciate for its clear, wide-open feel, less hippyish than others like Rainbow and Starlight, and makes an appealing middle name possibility.

The fierce image of the Barbarian made a complete turnaround thanks to amiable talk show host O'Brien, making Conan one of the newly desirable Irish choices, a perfect alternative to Conor/Connor.

Vale is part place name, part nature name -- a poetic term for a type of valley. Today Show coanchor Savannah Guthrie put Vale on the baby name map when she chose it for her daughter, but there's no reason the name can't work equally well for a boy. Vale might also be a short form for Valentine or a spelling variation of the city name Vail.

This evocative green nature name, heard much more frequently as a surname, is associated with playwright Moss Hart (born Robert), who co-wrote (with George S. Kaufman) such enduring Broadway comedies as The Man Who Came to Dinner and You Can't Take it With You.