9 Letter Boy Names

As with Guillaume (see above), Liam, Willem, and Wilhelm, everyday Williams in their own countries, Guillermo is a captivating possibility here. Giermo, Gigermo, Gijermo, Gillermo, Gillirmo, Giyermo, Guermillo, Guiermo Guilermón, Guille, Guillelmo, Guillermino, Guillo, Guirmo, Gullermo, Llermo, Memo, Quillermo.

The epithet of the legendary king's father Uther in Arthurian legend, later also applied to King Arthur himself. It literally means "head dragon" or "dragon's head", but the name appears in medieval Welsh mythology with the figurative meaning of "chief warrior". A truly daring name for a boy, in every sense!

The great philosopher's name is commonly used in Greek families, and is one that could work for daring, philosophy inclined American ones.

Hippolyte is the name of an Amazonian princess AND her son, both unfortunate mythical figures. The name Hippolyte, later borne by several saints, is a not an uncommon boys' name in France, but has barely set foot on American soil and is unlikely to do so. It was the middle name of famed French playwright Jean Giraudoux.

The name of the third U.S. President sounds, like Harrison and Jackson, more modern and stylish now than its root name. Used as a first name long before our surname-crazed era, Jefferson was most famously used as a first name by the President of the Confederacy, Jefferson Davis, which may justifiably make you not want to use it. Jefferson is the middle name of another Prez, William Clinton.

Cassander is the masculine form of Cassandra, and the name of an ancient king of Macedon from the 3rd century BC. It could make a nice alternative to Alexander or a refreshing way to honour a female relative named Cassie/Cassandra/Sandra.

Extravagant virtue name which is notably the first name of the British TV detective Inspector Morse.

When playwright Thomas Lanier Williams adopted the pen name of Tennessee, he created a new possibility among American place-names, although it's admittedly a bit bulky in size.

Mythological young man who fell in love with his own image: the first narcissist.

If you discount the connection to the controversial Whittaker Chambers in the days of the Red Scare, Whittaker is a pleasant enough British surname with the preppyish nickname Whit.

This lively Scottish name caught on for girls in a big way starting from the 1970s in the US, although it has remained much more gender-neutral in its native Britain, where it peaked at #109 for boys in 2005 (#303 for girls the name year). Mac would be a cool short form.

Sovereign is a new addition to the baby name lexicon, recently used by such celebrity parents as Cam Newton and Usher for their daughters. But don't mistake it for an exclusively feminine name — part of Sovereign's appeal is its gender-neutral status, as it's given to roughly equal numbers of girls and boys each yera.

Cormorant is definitely one of the most unusual of the newly fashionable animal names, and one of the rare bird names for boys.

An everyday name in France, a charismatic possibility here.

Nathaniel is a wonderful classic name and Nathanael, which may be an ancient Greek or Hebrew form, is appealing and has gravitas but may prove needlessly confusing in the modern world.

Dark.

A classic Irish "top-o'-the-mornin' surname with a lot of rhythm and pizzazz.

Devereaux is familiar to many English speakers as a surname but not as a first. It's a habitational name related to the River Eure in France. Mick Jagger has a son with this name in a different spelling, Deveraux.

Truly original yet not strange name ripe for the plucking by the adventurous baby namer. Aurelius works too.

Also spelled Sigfrid, this hefty German name has an appropriately majestic meaning: "victorious peace". Fittingly, a famous bearer was the English World War I poet and pacifist Siegfried Sassoon. Sassoon was named after the hero of a Wagner opera, which in turn was based on a tragic hero from German legend.