Jackie Kennedy gave this name a lot of style, but it doesn't seem destined for a comeback the way brother name Jack has. Jackie and Jacqueline both peaked in 1961.

While Jadon is the authentic biblical name, Jaden is by far the more popular spelling, first noticed when Will and Jada Pinkett Smith used it for their now grown (and famous) son. It has since swept the country for both sexes, with a wide variety of spellings and rhyming cousins.

Jacoby, a surname spin on Jacob shot up the charts in the middle of the 2000's, thanks largely to the popularity of Jacoby Ellsbury, the first Native American of Navajo descent in the Major Leagues, but has been dropping steadily since it peaked at Number 423 in 2008. As of 2022, it dropped out of the US Top 1000 and is given to around 170 boys each year.

Thanks to two cultural influences, January has joined March, April, June and August as a plausible month name.

Jagger is a swaggering Rolling Stone of a name that's been picked up by a number of fellow celebs, including Lindsay Davenport and Brett Scallions--while Soleil Moon Frye pulled a gender switch when she bestowed it on her daughter. It's edgy with a touch of danger.

This once obscure name was propelled to fame by Britney Spears, and by Will and Jada Pinkett Smith in the 2000's. It skyrocketed into the US Top 10 for boys, but it also saw significant use for girls.

A simple and streamlined Biblical name, Joah borne by several figures in the Old Testament. Meaning "Yahweh is his brother" or "brother of God", it could be an unexpected way to honor a family Joe or an alternative to the popular Noah, Josiah, and Jonah.

Both Jeb and Jed are very attractive Old Testament short forms with long and bright futures. Jeb's main current association is with the Bush brother and former governor of Florida, but the name was a mainstay on early TV westerns, and then went upscale as the nickname (his birth name being Josiah) of the President on "The West Wing."

A sweet name with many cross-cultural ties: it's an equivalent of Jane in languages including Czech, Slovak, Dutch, German, Slovene, Catalan, Estonian, and Latvian.

Though every Spanish student knows that the male classic is pronounced HY-me, for girls this is a straight homonym for Jamie, a favorite ambisexual 1970s nickname name. Another way to think of it is as a variation of the French "J'aime" (meaning I love).

The ultimate dad name.

Joel is one of those boys’ names that's never been super-popular yet has never been UNpopular either -- it's been in the Top 400 in the US since we started keeping statistics in 1880. So it's inevitable that its female form Joelle would gain visibility too, and indeed Joelle was used most widely during Joel's reign in the Top 100, from the late 1960s through the early 1990s.

Jen is a short, crisp feminine name that originated primarily as a diminutive of Jennifer, though it can also be a nickname for names like Jenna, Jenny, or Genevieve. The root name Jennifer comes from the Welsh 'Gwenhwyfar,' meaning 'white wave' or 'fair spirit.' Jen gained independent usage during the 1970s and 1980s when Jennifer was at peak popularity, with some parents choosing to put just 'Jen' on the birth certificate. Its simplicity and directness appeal to those preferring unpretentious, straightforward names. While Jen's popularity as a stand-alone name has declined since the 1990s, it maintains appeal for its brevity and friendly, approachable quality. The name carries a casual confidence and remains recognizable without being overly common as a formal name.

Jules is one of the adorable boyish nicknames newly fashionable for girls. It's rarer than Billie, with a cool and casual feel. It's use in the popular TV series Euphoria - where the character of Jules Vaughn was portrayed by Hunter Schafer - brought this name into the spotlight.

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.

The line should end with Junior Soprano. While most would expect this to be a nickname rather than an actual given name, Junior has always ranked in the US Top 1000, hitting its peak in 1925 at Number 116.

For a minute or two this sounded more modern than Janet, now equally outmoded.

Long used in Spanish-speaking countries, this strong but feminine name was jump-started here by the rise of actress Jada Pinkett Smith. The Italian Giada is a popular variation. In the Bible, the name Jada was borne by a man and has a different root and meaning: It's Hebrew and means "he knows".

The Jodie spelling might be even more obscure, at this point, than the fading original, except actresses Jodie Foster and Jodie Sweetin have kept it in the public eye.

Peaked in the 1940s, but still an amiable classic, a la Joe and Tom -- though rarely used on its own.