Ashley was a sensation in the 1980s and 1990s; it hit Number 1 in 1991. Ashley is still pretty but more and more parents are turning to newer names like Ashlyn and Aubrey, and spellings such as Ashleigh and Ashlea. If you hear the name Ashley in a playground today, it's more likely to be the mom than the little girl.

Christina, a pretty and feminine, crystal clear classic, may be trending downward, but it's never out of style. Christina's short forms Chris, Christie, and Tina all seem dated—making the royal Christina best used in its full glory.

Steven, the phonetic and now predominant spelling of the classier Stephen, has finally dropped out of the Top 100 after seventy years. Steve has become one of the ultimate regular-guy names, right up there with Dave and Joe. and there have been innumerable pop-culture role models among its bearers--from Steven Spielberg to Steven Soderbergh to Steve Jobs.

Widely used here since the 50s, Allison — a derivative of Alice — has now been once again surpassed by the original Alice as parents embrace vintage revivals. Despite this, Allison's popularity has slipped only slightly.

An English surname name, Bradley has a long history, dating way back to at least 1086, but as a first name it actually succeeded in the US before it reached England--though Dickens used it in his novel Our Mutual Friend. Bradley Cooper is one namesake.

This saintly name--she was the mother of St. Augustine--plummeted after the double whammy of Lewinsky and the demise of Friends.

A variation of Corey, this spelling has also been on a steady decline since the early-1990s. Its days are likely numbered on the US popularity charts altogether.

One of the first luxury brand names and the quintessential Booming Eighties status-conscious moniker; used by Donald Trump for his daughter, Tiffany has plummeted far from its high in the Top 25.

Football great Brett Favre single-handedly kept this name in the limelight, though it continues to sink in popularity.

An alternate spelling of Brian, Bryan's one of the most enduring of Irish imports. Bryan is now slightly more popular than the original, with associations to Bryan Cranston, Bryan Ferry and Bryan Brown.

Once the quintessential bouncy teenager name, Kelly helped launch the trend of unisex Irish names . But it now takes a backseat to more substantial surname names like Kennedy.

Brittany first arrived on the US popularity list in 1971, and rapidly zoomed up the charts, in the Top 100 a decade later. By 1986 it had entered the Top 10, becoming the third most popular girls’ name in the country by 1989.

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.

Irish place-name -- it's a river, a town, and an airport -- once popular but now supplanted by such newer immigrants as Saoirse and Seanan.

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.

Peaking at #9 in 1982, Crystal's popularity in the 70s and 80s stems from its sparkling natural namesake and several notable bearers, like country music singer Crystal Gayle and Dynasty character Krystle Carrington. But it has since lost some of its luster for American parents, now ranking in the mid-600s. Ruby, Gemma and Pearl are fashionable alternatives, but nowadays Crystal could actually be a more unexpected choice for your little gem.

Jose is as widespread in the Hispanic community as Joseph and Joe are elsewhere in the U.S., though its numbers here are starting to decrease somewhat. Jose is one of those Spanish baby names that has never crossed over into the Anglo naming culture.

Lindsey 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, and that tradition has continued

Kristen may be somewhat past its fashion high point, but it remains forever crystalline clear. Possible problem: confusion with the similar Scandinavian names Kristin, Kirsten, Kirstie, et al.

In the early eighties, Lindsay, in tandem with Courtney, approached the Top 10.