There are several Percivals scattered through the Harry Potter series, which might help transform the old-fangled, fussy image it has accrued. Actually, the original Percival was the one perfectly pure Knight of the Round Table, a worthy hero. The name was invented in the twelfth century by a poet named Chretien de Troyes, for his ideal knight in the poem Percevale, a Knight of King Arthur.

Osiris is the name of Egyptian mythology god-king who died and was reborn every year. Emerging from centuries of obscurity, Osiris has several ingredients for success in the modern world: Roots in ancient myth, an uplifting meaning, an s ending and the cute nickname Os or Oz.

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.

Conor's more popular brother name Connor has been in the Top 100 for long enough that both are ready to make way for a new generation of Irish boys' names.

The name of a figure from Greek mythology, Adonis is a high-pressure name often synonymous with masculine beauty. Nonetheless, many mythological names that would have previously been deemed off limits have made their way up the popularity charts—for instance, Penelope currently ranks highly for girls. And indeed, Adonis was one of the fastest-rising boys' names of 2016, moving up 307 spots on the U.S. popularity chart in just one year.

Jupiter's partner Juno has entered the mainstream, so it's possible that her divine mate could follow. But not necessarily for boys — Jupiter is currently mostly female in the US, thanks to its similarity to Juniper. Stars including Ed Sheeran and Ashley Tisdale recently welcomed daughters named Jupiter, which could shift the balance even more towards the girls.

These days, some may think of Hermes as an upscale brand name like Chanel and Porsche (spelled as Hermès), or a strange choice thanks to the parcel delivery company. However, with names from Greek mythology very much in style, it is possible there will be plenty who link it to the Greek messenger god.

Forget the oil. It's one of the twins that make up the constellation Gemini, and a mythological name on the cutting-edge of fashion; used by Metallica's James Hetfield.

Eryx has a sci-fi sound and deep roots. In Greek mythology, Eryx was the son of Poseidon and Aphrodite and a king in Sicily. He was a great boxer, but was eventually beaten by Heracles. He probably got his name from Mount Eryx in Sicily, now known as Erice. Never used before 2005, this could be a mythological gem to watch - and an alternative way to honor an Eric.

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.

Loki is the shape-shifting, gender-bending god of mischief in Norse mythology. Taking several animal forms, from a salmon to a seal to a fly, Loki is alternately friend and foe of the gods.

If you've rejected all the names on earth, you might move on to the sixth planet from the sun, also the Roman god of agriculture and plenty, and the origin of Saturday.

The name of the ship sailed by Jason in his search for the Golden Fleece is now more often used for starch, trucks, and heavy machinery.

Ara is a unique boys' name that one of the most melodious in the Armenian name pool, familiarized by Notre Dame football coach Ara Parseghian. In Armenian mythology, Ara was a king so handsome that a rival queen went to war in order to make him her own. The name Ara is also known in the Arabic and Hebrew cultures.

Ajax is the name of two Greek heroes, both who fought in the Trojan war and feature in Homer's "Iliad". Distinctive yet familiar in sound, thanks to similar choices like Jack, Asa, and Ajay, Ajax is also the name of a foaming cleanser in the US, and if you find that reference too strong, you might try the shortened Jax instead.

Fintan is an ancient Irish saints' name that in legend is also the name of the only person to survive The Flood. Popular in modern Ireland, Fintan is ripe for export to the US where it is rarely used but could make an excellent long form for the stylish Finn.

The first famous Paris was a mythological prince of incredible beauty. The most recent was media darling Paris Hilton, inspirer of a generation of baby-girl namesakes. But since Pierce Brosnan and other celebs have continued to use it for their sons, the name retains some masculine identity. For girls, it jumped from #464 to #412 in the past year alone.

Icarus, the mythological figure famous for flying too close to the sun, has a couple of negatives: his rash reputation, and those "icky" nicknames.

Better than Capricorn or Cancer, not as usable as Leo, the name of the Roman god of war becomes more possible as a baby name every day, as mythological names take the place of biblical names.