In the early 1990s, Cody was in the Top 25 most popular boys' names in the USA; but it has been in decline since then. It retains a greater degree of popularity in the UK, however. Cody might be short for Dakota but despite its nickname feeling, it's a name of its own.

Sierra is a name borrowed from the western mountain range, with Latin rhythm and cowboy charm, that has led to many offshoots: Cierra, Cyara, and so on. It is now probably past its peak but retains its pretty-yet-strong sound. The meaning refers to the sharp, irregular peaks of some of the Western mountains such as the Sierra Nevada.

Long more associated with the New York Waldorf- hotel and the neighborhood in Queens than as a baby name, Astoria is finally beginning to emerge from their shadow and find favor with parents looking to move beyond Brooklyn. The name Astoria is drawn from the surname of titan of industry John Jacob Astor, theorized to mean "hawk."

A literary name and a place name with a grand yet familiar feel, Virginia has been in the US Top 1000 since records began in the late 19th century. Also familiar in Spain, Brazil and Italy, recent years have seen it rank around the #500 mark in the States.

Salem is a Biblical place name in Canaan, believed to be the same as Jerusalem, as well as the Massachusetts town famous for its late 17th century witch trials. Salem is also a popular first name in its own right throughout the Arabic world.

Before there was Aspen, Denver was the Colorado city name of choice, and it reentered the US Top 1000 in 2015 after a 14 year absence as a stylish two-syllable boys’ name with its trendy -er ending. Its decade of greatest use was the 1920s, when it reached as high as Number 422.

An early and still one of the most popular unisex names, also a place name and name of a Native American people in the northern Mississippi valley, which makes it a controversial baby name choice. While the popularity of Dakota is trending downward for both genders, it's one of those rare genuinely gender-neutral names that is used for nearly equal numbers of boys and girls.

This name of a touristed island in sight of Los Angeles makes an attractive and newly stylish variation on the classic Catherine or overused Caitlin.

As trendy as the chic Colorado ski resort, with a hint of whimsy from the shimmering trees, Aspen has been climbing the charts for boys since the early 90s. While it has always been more popular for girls, it could work for a boy too.

Used for a free-spirited character on a 1990s sitcom, this name of a beautiful Southern California canyon does have an unconventional aura.

Romantic, and classy, this variation heats up Caroline and modernizes Carol, adding a southern accent. A popular choice in Portugal, Spain, Mexico, and Italy, it recently entered the US Top 500.

A laid-back cowboy name which feels both cool and gentle, Dallas has ranked in the US Top 500 since records began in 1880. Never super popular but surprisingly never out of style, Dallas is given to nearly 1400 boys in the US every year.

The name of the protagonist of Disney’s Brother Bear also has a geographical connection: the Kenai Peninsula and Kenai Fjords National Park in Alaska.

When Gary cracked the Top 10 in 1950, it was one of the first nonclassic boys’ names to do so, largely due to Gary (born Frank) Cooper, who was renamed after Gary, Indiana, his agent's hometown. Now, a 65 years later, Gary isn't particularly high in the charts, and has lost any glitter it had. May we suggest the fuller name Gareth?

Holland, like most place names, is intrinsically gender neutral, but in practice today it's mostly female. There's about one boy Holland born in the US these days for every five girl Hollands. That's a reversal of the last century, when Holland peaked as a boys' name in 1893, falling off the Top 1000 completely in 1913.

European royal name, and to Americans a place-name evoking the majestic mountain in Washington state.

Salem is a biblical place-name in Canaan, believed to be the same as Jerusalem. Americans may be more familiar with Salem as the name of the Massachusetts town famous for its witch trials in the late 1600s. It's also a popular Arabic name widely-used for both genders.

A name with a bit of glamor but also cowgirl vibes, Dallas entered the US Top 1000 for girls in 1992. It fell out of style during noughties, but reappeared in 2012 when other gender neutral names like River, Sawyer, Rowan, and Blake were also climbing fast.

Extreme makeover: Brooklyn has gone from jokey Borough Boy name in the 1990s to a leading girls' name starting with B. The status of New York's Brooklyn as hipster heaven is ironic as few bona fide Brooklyn hipsters would choose this name.

Traditionally a Scottish habitational surname, but today could be viewed as a mashup of Melanie or Melissa and Rose.