Augustine is more substantial (and saintly) than August, less pretentious than Augustus, and, along with its nickname Gus, is definitely a viable choice.

Tough-yet-cuddly Bruno is an international name even in its origins: it derives from the Germanic word for "brown" plus a Latin ending, and was borrowed as a color word in many European languages.

Thaddeus, a distinguished, long-neglected name, has several areas of appeal: a solid New Testament legacy, a nice antique feel, and the choice of several more modern nicknames and international variations.

Name of an Old Testament soldier that's been also used as a girls' name in modern Israel. An alternate spelling is Adinah. Some mistake Adina and Adinah to be the root of Dinah, but the Biblical name Dinah is borne by a different figure and has a different meaning. You can consider the modern short forms Dena and Dina as stemming from either Adina or Dinah.

Johanna is the version of this name used in Holland, Germany, and Scandinavia. The extra h makes Johanna a slightly more dignified version of Joanna.

A feminine form of Martin, this strong and zestful sounding name is popular in Argentina, Chile, Spain, and Italy, where it ranks in the Top 30. Also familiar in Czechia, the UK, Slovakia, and Switzerland, it has never made it big in the US, and fell out of the charts back in the 2000s.

Ultimately associated with Mars, the Roman god of war and with the 3rd century patron saint of Rome, it has also been borne by two notable tennis players, Martina Navratilova and Martina Hingis.

This spelling of the classic name is found in France, Germany, Greece, and other cultures, and is worn by such notables as Elisabeth Kubler-Ross, Elisabeth Shue, Elisabeth Moss, and Elisabeth Hasselbeck. The name's pronunciation is usually just like the Z version, but some parents choose this because they want to discourage the Liz or Lizzie short forms and so pronounce it as if it has Lisa in the middle.

Duncan is jaunty, confident, and open, a Scottish royal name that's brimming with friendly charm and makes it into our golden circle of names that are neither too popular nor too strange. Popularity aside, Duncan is one of the most classic Scottish names for boys.

Lost in limbo for decades and decades, Elsa now stands a good chance of following along in the progression from Emma to Ella to Etta, thanks to the ice queen heroine who "Let It Go" in the wildly popular Disney movie Frozen. The name shot all the up to Number 286 (its highest ranking since the 1890s) in the year after the release of the movie, though it's now dropped back down the list in the US.

Alba is quietly making a behind-the-scenes comeback, perhaps thanks to actress turned baby-product mogul Jessica Alba. Last on the Top 1000 a century ago, the name was given to nearly 200 baby girls in the US last year. Alba might be tomorrow's successor to Ava and Ella. In Spain, Alba ranks among the Top 20 girls' names. Alba is the name of a character in The Time Traveler's Wife.

James for a girl? Believe it or not, this is one of the boy names for girls" gaining a lot of attention these days, since Blake Lively and Ryan Reynolds shocked the world by choosing it for their eldest daughter in 2014 (after his late father).

Susanna is an old and under-appreciated name, perhaps because of the recent overpopularity of Susan, that is certainly due for a comeback.

Most modern parents would drop the Jo, leaving the superpopular Ella.

Antonia is stronger than most feminized boys’ names, reflecting the pioneer spirit of Willa Cather's classic novel My Antonia. Antonia is hovering near the bottom of the US popularity list, which may be an excellent reason for you to use it.

Short and sharp with a nature related meaning, Vance was trending upwards in recent years thanks to the musicians Foy Vance and Vance Joy. 2024 saw it take a downwards dip however, likely due to its association with the vice president, JD Vance, a controversial association which it might not recover from for a while. Time, however, will tell.

Corinne is one of the names that, it might surprise you to learn, ranked among the US Top 1000 girl names until 2020, when it fell off the charts after 140 years. Its most popular year was 1926, when it ranked Number 249. Corinna is another pretty ancient form of the name, technically a diminutive.