Connor, the appealing name of an early semi-legendary king of Ulster in Irish mythology, sits firmly in the Top 100 and taken together with its alternate spellings would rank even higher. In its native Ireland the Conor version is one of the highest charting boys’ name.

Isabel derived from Elizabeth in southwest Europe during the Middle Ages. It was originally written as Elisabel, but the first syllable was dropped as it spread across the continent. In Spain and Portugal, Isabel and Elizabeth are considered to be variations of the same name, but they are treated as separate names in other European countries and the US.

Isaiah, like brethren Isaac and Elijah, is a once neglected biblical name now firmly back in favor, already surpassing such long-popular Old Testament stalwarts as Aaron and Adam. Isaiah has ranked on the US Top 1000 list for boys every year but two, 1969 and 1970.

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

While John Wayne and Duke Ellington are worthy role models, the reason Duke is currently enjoying a revival and returned to the Top 1000 in 2013 as one of the year's fastest-rising boys’ names is more likely due to the name given to high-profile TV couple Giuliana and Bill Rancic. Christened Edward Duke, he has always been called by his middle name, just as Edward Duke Ellington was. Duke is just one of several aristocratic titles being increasingly used by ordinary citizens.

Landon is a popular surname name; it's been dropping slightly in recent years but has surpassed its once more popular rhyming cousin Brandon. For some it may bring back nostalgic memories of Little House on the Prairie 's understanding Pa, played by Michael Landon.

There are no less than ten different variations of Hailey on the current Most Popular list, but this is the spelling that brought it into the Top 10 of 2010, although it has quickly fallen in popularity. So, although Hailey has a shiny, unpretentious charm, its mass popularity makes it very much of the moment.

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.

Originally used for children baptized in holy water from the river Jordan, it became one of the leading androgynous names of the nineties. As the balance tips toward the boys' side, it's slipping on the girls' popularity chart. Alternate spelling Jordyn is now more popular for girls.

One of the hot two-syllable T names of the nineties (along with Tyler, Trevor, and Taylor), and well represented on soap operas; Tanner is still widely used, but its popularity is declining.

Aidan was originally a pet form of the Irish name Aodh (pronounced 'ee'), the name of the old Celtic god of the sun and fire. The name was borne by numerous early Irish saints, one of whom was noted for his kindness and generosity.

Although we prefer Drew to the old Raggedy Andy, Andy has overtaken Drew as a name in its own right. About twice as many baby boys are named Andy, just Andy -- though about eight times as many parents go with the full Andrew.

Singer Macy Gray has popularized this cute and upbeat choice—once solely associated with the department store. A modern replacement for Stacy and Tracy, Macy was most popular in the early 2000s when it nearly made the US Top 100.

Brennan is a winning Irish surname name, more modern than Brian or Brendan, more unusual than Conor and Aidan. The only possible problem with Brennan: people might think you're saying Brendan.

Titus, once seen as a slightly forbidding Roman, New Testament, and Shakespearean name, was brought back to contemporary life in the USA by the TV series Titus 2000, increasing in popularity along with other revived ancient names like Linus and Silas.

Simple and universal, Marco is a Latin classic that would make a much livelier namesake for an Uncle Mark. It was used for her son by actress Jill Hennessy and goes well with surnames of any nationality.

Will has definitely replaced Bill, not only as a nickname for William but as a stand-alone name as well, partly thanks to England's Prince William, also known as Wills. Currently outside the Top 1000 in the US and the UK, it wouldn't feel totally out of style.

Jupiter's partner Juno has entered the mainstream, so it's possible that her divine mate could follow. But not necessarily for boys — Jupiter is currently mostly female in the US, thanks to its similarity to Juniper. Stars including Ed Sheeran and Ashley Tisdale recently welcomed daughters named Jupiter, which could shift the balance even more towards the girls.

Confident and compact, Ana is a widely used variation of the Biblical Hannah. Favored in Spain, Slovenia, Bosnia, Portugal, and Croatia, this shorter spelling has the same substance and versatility of its longer counterparts.

The recent ascent of this English surname is due to two things: the megapopular Ash beginning and TV/movie hottie Ashton Kutcher. The name peaked at Number 76 in 2004, a year after Ashton Kutcher's (both Christopher Ashton) hit TV show Punk'd made its debut.