"J," "K," and "L"

Jaxon has been mostly climbing in popularity since it entered the Top 1000 in 1997, proving the point that many parents have decided to rev up the cool factor of Jackson and give it this streamlined spelling. (Though we still prefer the original.) Kristin Cavallari used it for her son. Jaxson is another popular spelling.

This variation of Jordan entered the Top 1000 in 1989. Jordyn as well as Jordan trended throughout the 90s and early 2000s, but are beginning to fall slightly on the girls' side. While the Jordan spelling reached the highest point in popularity out of the 2, making it into the Top 50 in the late 90s and early 2000s, today Jordyn has taken the lead.

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.

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.

Lincoln cracked the Top 50 for boys' names for the first time in 2016, more than 150 years after the death of its most famous bearer. This is especially remarkable because, as crazy as it seems now, Lincoln was deeply out of fashion as recently as the late 90s, consistently hovering near the bottom of the Top 1000.

Though this name of a sturdy tree that can live for centuries was quite popular for boys in the first half of the twentieth century, at this point in time we can see Linden as a fresh-sounding possibility for a little girl named to honor an Aunt Linda. Early pagans and Christians embraced the Linden as a holy tree, thought to aid healing and often planted near churches. The Linden is the mythological symbol of truth, peace, and justice; court cases and marriage ceremonies were often held beneath Linden trees. The Linden tree is associated with the goddess Freya.

Logan, with its appealing Scottish burr, is a very hot boys' name—it's in the national Top 10 and heading for Number 1 in some states—and can also make a rich and resonant choice for a girl. Jason and Jordan Mewes have a daughter named Logan Lee.

The capital of the United Kingdom makes a solid and attractive twenty-first-century choice, with a lot more substance than Paris. It's in the unisex column, with both girls and boys given the name in recent years.

Very much a boy's name in Italy, it's beginning to be seen as a unisex possibility here: actress Jennie Garth used it for her daughter. When spelled Lucca as in the Italian city, it can also be considered one of the place names along with Venezia, Roma, and Milana that make great Italian names for girls.

This name of a character played by Kirsten Dunst in the movie Virgin Suicides, originally a novel by Jeffrey Eugenides, is gaining attention, also thanks to the heroine Lux, Lady of Luminosity in the League of Legends games. Luz is the Spanish version.