Once Upon A Time

Although the Kathryn spelling feels like a modern streamlining of this ancient royal and saints' name, it is in fact found back through history. At least one of Henry the Eighth's unfortunately wives sometimes spelled her name as Kathryn.

Strong but gentle, Keith is one of the Scottish surnames that, along with Douglas, Craig and Bruce, were considered the epitome of cool in the 1960s and early 1970s, when it was a Top 40 choice.

Kevin came to the US with the large wave of Irish Immigrants after World War I, hitting the US Top 1000 list for the first time in 1921 and never leaving.

Killian – aka Cillian – is a spirited yet resonant Gaelic name that was borne by several Irish saints and could make a distinctive replacement for the dated Kelly. Kylian is another spelling that's gaining traction, thanks to French soccer star Kylian Mbappé. Possible downsides: an unsavory first syllable and a connection to the trendy brew.

A name that defines itself, a bit more curt in the harder K version.

A unique combination of a surname feel and dainty femininity. It's currently associated with actress Lacey Chambert.

In Arthurian legend, Lancelot was one of the most dashing of the Knights of the Round Table who eventually had an affair with Queen Guinevere: it makes for a romantic story-- but perhaps overly romantic-- name.

This aristocratic, somewhat formal Germanic route to the popular Leo is a royal name: Queen Victoria used it to honor a favorite uncle, King Leopold of Belgium. Though Leopold sounds as if it might be a leonine name, it's not really a relative of such choices as Leon, and Leonard.

Leroy's heyday was in the early twentieth century, when it was in the US Top 100 until 1949. As a result, it's now more frequently seen as a father or grandfather name rather than a viable newborn option. Though it has dropped off the popularity charts several times in recent years, it hasn't fallen into complete obscurity yet.

Liam is the top boys' name in the US, holding the Number 1 spot for the past seven years and also ranking as one of the most popular boys' names around the western world.

Lilith is derived from the Akkadian word lilitu meaning "of the night." In Jewish folklore she is portrayed as Adam's rejected first wife, who was turned into a night demon for refusing to obey him. Lilith is unrelated to most other Lil- names, with the exception of Lilita, which is the Latvian variation.

Lily is the most popular of the popular delicate century-old flower names now making a return, thanks to its many irresistible attributes: a cool elegance and a lovely sound, a symbol of purity and innocence, and a role in Christian imagery.

Celebrated in song—the rock 'n' roll classic "Louie, Louie"—this is a gregarious, friendly spelling of Louis not often used as a full first name. It reentered the US Top 1000 in 2015. It's a highly popular choice in England and Wales.

A versatile classic, Lucy is both sweet and solid, a saint's name, and the heroine of several great novels. First fashionable in England and Wales, Lucy is now a popular choice in the US, The Netherlands, and New Zealand.