Boys names

Jasper and its many international variations, from Kasper to Casper to Gaspard, is finding new popularity.

Knox is an old Scottish surname that Brad Pitt (whose great-great-grandfather was named Hal Knox Hillhouse) and Angelina Jolie took out of the back cupboard, dusted off, and elevated to coolness--to the point where it entered the popular baby names list in 2009. Knox now ranks among the most influential celebrity baby names.

More popular in its Layton spelling, Leighton is rising in popularity in the US for both sexes simultaneously, although this spelling remains more popular for girls for now – no doubt helped by actress Leighton Meester. Lleyton – as in Australian tennis star Lleyton Hewitt – is another, even more complicated, variant spelling.

For centuries this name was associated primarily with the towering figure of Italian Renaissance painter-scientist-inventor Leonardo da Vinci, and was scarcely used outside the Latin culture.

Reign is one of a new, ahem, kingdom of word names that suggest a high-born child, joining Royal, Lorde, Titan, Saint, King, Princess, and Noble. We predicted this kind of defining name to be the Number 1 baby name trend of 2015...two weeks before Kourtney Kardashian and Scott Disick named their third child, a boy, Reign.

Sebastian is an ancient martyr's name turned literary, and Little Mermaid hero—think Sebastian the Crab—that's more popular than ever, as a classic-yet-unconventional compatriot for fellow British favorites T Theodore and Oliver.

If ever there was a one-person name, it's probably Sherlock. But Sherlock Holmes the character has arguably never been hotter: he's been played by Robert Downey Jr., Ian McKellen, Jonny Lee Miller and, most memorably, Benedict Cumberbatch, in various film and TV adaptations over the last few years. So you never know.

This lively, springy, rarely used surname name has an interesting history. For the English, German, Dutch and Ashkenazic Jews it was a nickname for a lively person or traveling entertainer, deriving from the words springen/springhen/shpringen, and in English it's also a topographical name for someone living near the source of a stream. An unusual option if you're seeking an out-of-the-ordinary 'er'-ending name. Though for some it might bring to mind Jerry Springer, or a Spaniel.

The name of an important ancient Roman emperor, Tiberius might sound a bit heavy for a modern boy to carry, but with the rise of Atticus, Tiberius and brothers begin to feel more baby-friendly, much in the same way as Old Testament names like Elijah and Isaiah have been rejuvenated.

Chef Wolfgang Puck has helped soften this thunderous Germanic name; music-lovers will appreciate its association with Mozart, though the composer's middle name Amadeus is more appealing.