Traditionally Masculine

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.

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".

Kim is forever feminized, despite memories of the Rudyard Kipling character.

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.

Lindsay is one of the few truly unisex names (rather than being a name that has changed genders). Over time the ey ending was usually reserved for women and the ay ending reserved for men, although both spellings are overwhelmingly female these days.

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.

Long gone to the girls.

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.

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.

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.

One of the few Italian forms less attractive than the original, this time because it will forever be mistaken with the feminine version.

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.

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.

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.

Southern name still occasionally heard in a male context (author Shelby Foote and the son of singer/sitcom star Reba McEntire), but it's much more associated with girls.