Janet started as a pet form of Jane but has long been used independently. Jane is a feminine form of John, which derived from the Hebrew name Yochanan. Janet can also be considered a variation of Jeannette, a derivative of Joan and another feminization of the name John.

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,

Though Eoin is a Gaelic form of John, its Anglicized pronunciation links it directly to Owen. Eoin is currently a Top 30 name in Ireland. Other variations: Ewan, Ewen, Evan and Eoghan (pronounced as Owen but also translated as Eugene).

Yannick originated as a diminutive of Yann, the Breton form of John. However, it has since become popular as a standalone name in its native region of Brittany, as well as in France as a whole, where it peaked at #31 in 1973-4. It remains well within the Top 500 in France to this day, and has also seen regular use in Belgium, Switzerland, the Netherlands and Quebec.

Mercedes is one of the few names attached to luxury living that we can wholeheartedly recommend, it being a legitimate Spanish appellation stemming from one of the epithets given to the Virgin Mary--Santa Maria de las Mercedes, or Our Lady of the Mercies. The car, by the way was named after the eleven-year-old daughter of the Daimler company's French distributor in 1901.

Shawn is a phonetic spelling of Sean that may be past its peak – it was a Top 30 name in the early 1970s – but is still quite popular for boys: over 500 baby boys were named Shawn in the US in the most recent year counted vs 800 given the original Sean spelling.

Jack for a girl: could it go the way of James and become a trendy new thing? There's something smart and understatedly cool about Jack for either gender, although long forms Jacqueline or Jacquetta aren't quite ready for a revival just yet.

Juan, the Spanish version of John, is ubiquitous in the Spanish-speaking world, and is familiar internationally via such references as Don Juan and San Juan.

One of the best known of the Irish girls' names, thanks to singer Sinead O'Connor. Though it's still in the Irish Top 100, it's no longer quite as fashionable in Ireland as Aoife or Aisling. But by now everyone in the Western World knows it's pronounced shin-aid and so would have no trouble fitting in on an American playground.

Evan is a boys' favorite that has been given the feminine touch by talented actress Evan Rachel Wood. If you want to move beyond Eva and Evelyn and like unisex names, this may be a good bet for you (though like Evan Rachel Wood, you may want a feminine name in the middle name position to clarify matters). Evanna is also another alternative.

A Top 100 name from the 1930s all the way through the 1950s, it's now firmly in Mom -- or Grandma -- land and supplanted for babies by Joanna.....or even great-grandmother Josephine. In its heyday, it had a host of variations, including JoAnn and Jo-Anne.

It's difficult to imagine anyone using the first name Jonesy -- and in fact, in the most recent US tally, there were nearly 100 babies named Jones but none named Jonesy. Still, this is a name that many people with Jones for a name, last or first, end up being known by, and as a nickname, it's sorta cute in a Skip, Chip, Bitsy kind of way.

Although Joan was the more popular name in the 20th century, it's the nickname Joanie that is likely to be revived first. Joan ranked as a Top 100 name from the mid '20s to the mid '60s, and the US is still Joan-ed out from that era. But sweet Joanie feels fresh — a sister to names like Sadie, Elsie, and Sylvie. It could have a future on the Top 1000 but for now, scoop up Joanie while it's undiscovered.

Milla originated as a diminutive of names like Camilla and Ludmilla, but has since become well established as a name in its own right in several European countries. Milla Jovovich is a Ukrainian-born actress and supermodel, while Milla is also used for a character in the novel and musical adaptation, Wicked.

Sean may be off its peak for boys, but there were still 1300 baby boys named Sean in the US in the most recent year counted, versus only five baby girls. In fact, there were fewer than 30 baby girls given the spellings Sean, Shaun, and Shawn combined. So while this name has been long used for girls, it remains in only occasional use as a feminine name and is not truly unisex in the way that names such as Rory and River are.

With Old European vibes, Johan is a variant of the classic John, similar to the Latin, Hebrew, and Germanic forms, Iohannes, Yohanan, and Johannes. Conjuring up the image of the classical composer Brahms or the astronomer Kepler, while still feeling timeless and distinctive, Johan has been in the US Top 600 for most of the 21st century, helped along by Heidi Klum and Seal using it for their son in 2006.

Evans is an historic Welsh patronymic surname, derived from Evan, which is a form of John. With Evan's popularity in the U.S. and the U.K. -- it's a Top 50 names -- the stylish s-ending version may also be on the rise.

Using the 'ie' ending makes Johnny slightly more feminine, which must have been what Melissa Etheridge was thinking when she named one of her twins Johnnie Rose.

Mary was such a common name for so long that it sprouted a whole family of chimeric name splices: Maryann, Marybeth, Mary-Lousie, ad infinitum. Spiderman's Mary Jane Watson, the closed toe shoe with a strap, and the common nickname for marijuana have helped keep this one especially familiar to the American ear.