Traditionally Masculine

The ultimate Jane Austen hero name, Darcy makes a handsome, surname style choice. Predominantly used for girls in England and Wales, across the pond in Australia, it is a stylish Top 100 name for boys. In the US meanwhile, it does lean feminine, however, 30 boys were given the name in a recent year, suggesting it is on the up across the board.

Renowned English author Evelyn Waugh pronounced his name "EEV-lin" (fun fact: his first wife, also named Evelyn, was referred to as "She-velyn"). But "EV-uh-lin" also works, and is probably the most familiar pronunciation of the name today.

This name leapt into the female column via vixen Alexis Carrington on 'Dynasty" in the 1980s. It's more popular for girls, but it's still a widely used boys' names and is one of the most popular unisex names in the US today.

Madison was at one time a strictly boys' presidential name, reaching as high as Number 311 at the end of the nineteenth century. That all changed in 1985 when it entered the girls' list, zooming up quickly until it reached the Number 2 spot, with more than 22,000 female babies given the name in 2001. As is so often the case, its use for boys has dropped precipitously.

One of the most enduring French names, this form of John has been borne by philosophers (Rousseau and Sartre), artists (Millet, Arp) and fashion designers (Gaultier) alike. Often used in a double name with the likes of Pierre, Paul, and Luc, it is a classic in its native country,

The name of the longest river in the British Isles rose to the US Top 25 for girls in the 1970s and the Top 100 for boys, but has fallen off the Top 1000 for both genders. At the latest count, the name Shannon was given to about 200 babies in the US, about a third of those boys. As a favorite Irish name, Shannon has now been supplanted by newcomers such as Saoirse and Seanan.

Meredith has been considered primarily a girl's name since the fifties, before which it was more commonly used for boys. Comic actor Jay Mohr recently named his son Meredith, which might help it swing back into the blue column. The traditional Welsh pronunciation puts the stress on the middle syllable, making Red a cool nickname possibility.

While the variation Carmine is more familiar for boys, Carmen has also been used as a masculine name; consider the very macho Carmen Basilio — the American boxer famous for defeating the great Sugar Ray Robinson — or composer Carmen Dragon.

Spanish and Italian forms Carmelo and Carmello are also quite popular in the US, with Carmelo ranking in the Top 1000.

Despite its origin as a patronymic meaning "son of Adam", Addison really caught on for baby girls in the US around the turn of the millennium, following in Madison's footsteps to peak at #11 in 2007 and again in 2010.

A lean and lanky Irish cowboy name with great nickname potential to boot (Cass or Sid are both options). This is one of the great under-rated American names!

Kimberly is a variation of the South African (and Australian) place name Kimberley, named after John Wodehouse, 1st Earl of Kimberley. The name comes from a Norfolk earldom (first spelled Chineburlai) and references the meadow or woodland clearing of a medieval Lady called Cyneburga.

A variant form of Laurence or Lawrence which ranked in the #200s in the US from the 1900s through to the 1960s. It didn't fall off the boys' Top 1000 until the late 1990s, following the huge popularity of Lauren for girls.

Fun fact: Marion was the birth name of movie star John Wayne. Although commonly thought of as a female name today, it was actually more popular for boys until the late 19th century, and was given to roughly equal numbers of boys and girls throughout the 1970s-2000s.

Long gone to the girls.

Deriving from the Roman cognomen Vivianus, Vivian was originally a masculine name, with Vivien being a feminine soundalike coined by Alfred Lord Tennyson for the Lady of the Lake in his famous poetic adaptation of the legend of King Arthur. It has since become a much more popular choice for girls in the US, but retains a refined British charm which sees it cropping up occasionally for boys in the Telegraph birth announcements.

A sweet Scottish short form of Alexander which is feeling newly appealing now the era of Sandra is far behind us. Sandy would also work well as a nickname for a child with pale red or dark blond hair.

Though it's used for boys, most non-French people would hear it as a girls’ name. Most would be surprised to learn that Rene has always charted in the US Top 1000 for boys.

Kelsey (ex-Frasier) Grammer is a famous male bearer, although most modern Kelseys are female. It derives from several English place names, possibly meaning "Cenel's island", from the Old English name Cenel "fierce".

Gale for boys is more a storm name than a short form of Abigail. Since Gale has resurfaced as the name of Liam Hemsworth's daring character in The Hunger Games, it has new force for boys.

A predominantly male name in the US until the late 1950s, the name continued to rise for both sexes for both sexes for a further decade, before starting to decline for boys. Despite dropping out of the boys' Top 1000 in 2002, Kelly retains a rugged Irish charm.