Riley—an upbeat, friendly surname name—is red hot for girls and still going strong for boys. If you haven't been spending much time around babies recently, you may be surprised to learn that Riley is the most popular girls' name starting with R and also the Number 1 Irish name for girls in the US.

Holden is a classic case of a name that jumped out of a book and onto birth certificates--though it took quite a while. Parents who loved J. D. Salinger's The Catcher in the Rye are flocking to the name of its hero, Holden Caulfield -- not coincidentally in tune with the Hudson-Hayden-Colton field of names.

Barrett is one of many surname names that are up and coming for boys in recent years. Barrett joints Bennett, Beckett, and others in the trend of "-tt" ending boy names taking over the charts.

Skylar is a name with a hint of both edginess and whimsy and it makes for a nature-inspired choice that is neither too wordy nor too floral. Popular since the 90s, Skylar has remained in the US Top 100 for over a decade and is the most popular spelling of the name for girls.