998+ Unique, Rare, and Uncommon Boy Names (with Meanings and Origins)

Cato conjures up images of ancient Roman statesmen and southern antebellum retainers; it could have revival potential, with its 'O' ending and the current interest in the names of Greek and Roman antiquity.

The popular single-named alternative singer (born Bek) has given this cool nature-meets-surname name a new lease of life. Another notable bearer is Beck Weathers, a Texan pathologist who survived the 1996 Mount Everest disaster, which was covered in the book and film Into Thin Air.

The surname-style Alden has been on the rise in the US in recent years, while tree-inspired Rowan is a top choice. Combine this with the popularity of names ending in -er such as Carter and Parker and it makes sense why Alder is now 4 times as popular as it was a decade ago. Given to 125 boys in a recent year, it could be a modern way to honor an "Al".

Angus is a traditional yet stylish choice in the UK, especially in Scotland. And it's a cool choice for US parents too, particularly those whose roots go back to Glasgow. The ancient Celtic form Oenghus has important historical overtones in Scotland, and the Gaelic form Aonghas is associated with two distinguished modern poets. In Irish folklore, Angus Og is a chieftain-lord who used his magical powers for the pleasure and prosperity of mankind--and in Irish myth, Aonghus was the god of love and youth.

The patron saint of comedians and dancers (also known as St Vitus) has a name that is both the ultimate everyman, and has a hint of British aristocracy. In the States, Guy was most popular in the 1950s. Now he hovers steadily below the Top 1000, in the sweet spot of familiar but not overused. With the meteoric rise of Kai, Guy may have potential with parents looking for a more classic name with a similar sound.

Many will associate this name with Galen of Pergamon, the second-century physician considered to be the founding father of medicine. A more recent reference is Star Wars character Galen Erso. The name still projects a gentle, scholarly image, while sharing sounds with more popular names like Aiden and Nathan. Bonus: it's also an anagram of Angel.

A biblical place name with trumpeting verve and strength.

Barnaby, a genial and energetic name with an Irish-sounding three-syllable lilt, is an ancient appellation that manages to be both unusual and highly attractive and deserves to be used more than it is. A sweet-spot name that's a real winner.

Rye has the potential to become the masculine version of Rue—a short and sweet name for nature lovers (and whiskey fans too!). Rye might be short for Ryder or Riley or Rylan or any Ry-beginning name, but increasingly it stands on its own.

Whether it's used as a short form or on its own, this jazzy midcentury name is poised for a comeback along with brothers Ray and Walt.

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

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.

Clement, the name of fourteen popes and several saints, has a pleasantly, positive, slightly antiquated feel, like the phrase "clement weather."

Finnian is a fair jig of a name, energetic and easy on the ear. Finnian (and brother Finian) is also familiar in its alternate spelling through the classic 1968 Broadway musical Finian's Rainbow, later made into a film starring Fred Astaire as Finian McLonergan.

A spirited German name very popular in Italy and occasionally used here, Aldo is one of the unique baby names with international flair. And names that mean wise have an enduring appeal.

Rufus is a rumpled, redheaded (it was the nickname for red-haired King William) ancient Roman name popular with saints and singers (e.g. Rufus Wainwright); now, Rufus is on the cutting edge of cool.

The name of several ancient kings and princes of Ireland, Tadhg became so common at one point that it was used to represent a kind of Irish Gaelic everyman, or man in the street, as Paddy and Mick would later. Tadhg has seen a major resurgence in recent years and is also now ranked in England.

It is sometimes used as the Irish equivalent of Timothy and is also anglicized as Teague and Thaddeus. Tadleigh and Thad are pet forms. Pronunciation is like tide ending with a g or like the first syllable of tiger.

Liev Schreiber's birth name is Isaac Liev, Liev after his mother's favorite Russia author, Leo Tolstoy. Though Liev is increasing in popularity in the secular world thanks to the actor, it originated as a Yiddish diminutive.

Bram has an unusual measure of character and charm for a one-syllable name; it started as a hipper-than-Abe diminutive of the biblical Abraham, but is also an independent Irish and Dutch name, made famous by Irish-born Dracula creator Bram (nee Abraham) Stoker. Bram is currently Number 16 in the Netherlands; Bram Howard was a character on The West Wing.

Though it sounds like a modern invention, Kiran is a traditional Hindu name from India; chosen for her son by actress Kelli Williams. Author Kiran Desai is a woman and this name, which bears a resemblance to both the Irish (male) Kieran and the fifties favorite Karen, certainly works as well for a girl.