Marius, frequently heard in Germany and France, is a slightly fusty yet accessible name that has (Les Mis) to Anne Rice. With the rise in interest in such Latin names as Maximus and Atticus, Marius might start attracting more attention. Mario, the Italian, Spanish and Portuguese version of Marius, is much more widely used.

Classic yet spritely, Tatiana has long been familiar and popular in Russia and Eastern Europe, though it wasn't until the 80s that it caught on in the English-speaking world. With short forms Tiana, Tati, and Tanya, it is a versatile choice that has nevertheless seen a decline in use in recent year.

Cayo is a rare and rhythmic Spanish name, all but unknown in the English-speaking world, that would make a lively choice.

Upside: it has an interesting ancient look and feel, related to the Roman family name Laelius of uncertain meaning. There is also a type of orchid called the Laelia. Downside: possible confusion with all those Laylas, Lailas, etc. out there.

Heard in both Italy and Spain, Tulio could make a more unusual alternative to Julio. Or with the rediscovery of many Roman names, you might want to go to the original Tullius, the middle name of the philosopher and statesman Cicero.

An ancient Roman clan name, Flavia is one choice that's unusual but historic. Now a Top 60 name in Italy, Flavia has been a rarity in the US, but with the upswing in F names for girls, this could change. Seen more in literature than real life, Flavia was used as far back as an1580 romance, then in a William Dean Howells novel and as a Princess in The Prisoner of Zenda. Although the original pronunciation is FLAH-via, Flavie (as in flavor) could make a cute nickname.

Rhythmic, strong, and buoyant.

British-sounding literary surname choice.

Jia might be considered a spelling variation of Gia, an Italian feminine form of John as a shortening of Gianna or Giovanna. Jia might also be the anglicized form of many Chinese names, which have different meanings including home or family. If you're looking for girl names starting with J that sound unusual yet familiar, this might be one possibility, though many Americans will think it's spelled Gia.

The unusual and intriguing Tullia has been used since Roman times and may appeal to parents who like Tallulah, Julia, and Lillia but want something that's very rarely heard.

A spiritual word name — as in Noah's Ark and the Ark of the Covenant — that also fits the trend for short, punchy words like Oak and Ace. It's rare (used for 7 boys in 2020) but could sail far.

Ovidia is the unusual feminine form of the ancient Roman Ovidius, most famous as the name of the exiled 1st century Roman poet Ovid. Modern male form Ovidio is known in Spain and Portugal. Ovida is another variation.

Tatjana is an interesting twist on an already uncommon name, borne by German-born supermodel Tatjana Patitz. Note that as j is pronounced as y in German, the name is spoken just like sisters Tatiana and Tatyana.

A bold, powerful word name used for girls since 1981 (when the TV show of the same name first aired), and more recently for boys too.

On the staff of a manor house.

Old saints' and popes' name that went to France in the 1920s with the Russian Ballets Russes; in its Russian form, Sergei, it retains an artistic, almost effete air.

In The Hunger Games series, Cinna is the influential costume designer for Katniss. In ancient Rome, one Cinna was the father-in-law of Julius Caesar and another was a conspirator against Caesar.

Romantic Italian choice.

Tulia, rhyming with Julia, is one of several offshoots of the noble Roman family name Tullius, best known as the middle name of the philosopher Cicero. While the single L is considered the Spanish and Polish form, Tullia may be used in Italy. There's also Túlia, a Hungarian form of Finnish Tuuli, meaning "wind".

Derived from Slavic words seimo, meaning "family," and wit, "ruler" or "master."