3 letter names!

Could Hal be the Jack, Max, or Gus of the future? It just might happen in the new nickname environment. Hank Azaria put it on his son's birth certificate.

Ian is Scottish form of John, derived from the Hebrew name Yohanan. It is an Anglicization of the Scottish Gaelic Iain, which is also a viable spelling. Ian was introduced to Americans by Ian Fleming, creator of James Bond.

Many vowel names stylish a century ago are coming back, and Ida seems like a possible, logical successor to Ada and Ava.

Ike, once the quirky one-person nickname of President Dwight Eisenhower, has morphed into a cool kid nickname of the early 21st century.

A simple name occasionally heard a couple of generations back.

Ira is one of the shortest, non-biblical sounding Old Testament names, belonging to one of King David's thirty 'mighty warriors.' It was widely used in the US from the 1880s to the early 1930s (it was Number 57 on the Social Security list in 1881), but fell off completely in 1993. Although Ira is also a retirement-account acronym, it's back on the table for those seeking a short biblical name for their sons, and reentered the US Top 1000 in 2016. A musical namesake is lyricist Ira Gershwin (born Israel), a literary one is Ira Levin, and there are two prominent Iras hosting NPR radio shows.

Ira for a girl can be either a Russian short form of Irina, meaning "peace", or a gender-switch of the Hebrew male name Ira.

Isa is a name unto itself but might also be a short form of Isabel or Isadora. With the new popularity of Isabel and Isabella and even Bella, Isa may become more familiar.

The quirky, offbeat and energetic botanical name Ivy is enjoying a deserved revival, propelled even higher by its choice by high-profile parents Beyonce and Jay-Z for daughter Blue Ivy. Ivy is also traditionally used at Christmas, make this one of the perfect names for December babies.

Simple and serious Arabic name which debuted in the US Top 1000 in 2016.

Jax is the Dex-Jex-Pax type of x-ending cool -- possibly too cool -- variation of Jack or nickname for Jaxon or Jackson.

Though this feels like a modern invention, Jay has been in use for centuries. Early Jays often were named in honor of founding father John Jay, whose surname derived from the jaybird. A popular mid-century choice, Jay was in the Top 100 from 1956 to 1970. In the last couple of decades he was replaced by such more elaborate forms as Jayden, Jaylen, and Jayce. But Jay could make a comeback in tandem with cousins May, Kay, Fay, and Ray.

One of the boys' names newly appropriated for girls -- either on its own, as a pet form of any J name, or as a singular middle name.

There was an eighties cartoon queen named Jem (& The Holograms), and this is as likely to be a full name as a short form – deriving from Jemma, Jemima or Jameela.

Jia might be considered a spelling variation of Gia, an Italian feminine form of John as a shortening of Gianna or Giovanna. Jia might also be the anglicized form of many Chinese names, which have different meanings including home or family. If you're looking for girl names starting with J that sound unusual yet familiar, this might be one possibility, though many Americans will think it's spelled Gia.

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

Joe is still the ultimate good-guy name, not at all diminished by its longevity or popularity or its everyman rep as Regular Joe, Cowboy Joe, G.I. Joe, Joe Exotic, Joe Blow, Joe Millionaire, Average Joe — and now President Joe (Biden).

Streamlined version of the classic boys' names, sometimes a short form of Jonathan, which is in fact an entirely different name from John attached to a different Biblical personage. Jon feels more modern than the traditional John, but some may find it an overly slight variation on an already slim name. Jon Snow is a popular character on HBO's Game of Thrones.

Joy is from an older generation of word names, which also included Merry, Bliss, and Glory -- all of which exert a certain amount of personality pressure on a child. One interesting name that means the same thing: Chara.

Kai is an internationally flexible name with many possible origins and meanings, growing in popularity in the US and a diverse range of European countries.