3 letter names!

Gus is a homey grandpa nickname name that can work as a short form for any of the above or stand on its own as a cutting-edge replacement for Max and Jake--though it was off the Top 1000 from 1978 until 2016, when it squeaked in at Number 999.

We've seen Ray regain his cool, but could this country/cowboy name epitomized by Roy Rogers (born Leonard Slye), Acuff, and Clark, do the same?

Simple, short, and cool, Ray gives off retro vibes thanks to its 20th century popularity, and its links to jazzy Ray Charles and Ray-Ban sunglasses. A popular middle name for boys, it is well established as a given name too.

Gia is a cute if slight name that calls to mind stylish sisters Mia, Lea, Pia, Tia, and Nia. One of the most familiar Italian baby names in the US, Gia is a short form of Gianna, which in turn is a diminutive of Giovanna, the feminine form of Giovanni, the Italian equivalent of John—all of them meaning "God is gracious."

All the old ae/ay middle names for girls are back--Kay, Fay, Mae/May, --and Rae is one of the coolest, used as such by celebrities as Mark Wahlberg and Daniel Baldwin.

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.

Whether it's used as a short form or on its own, this jazzy midcentury name is poised for a comeback along with brothers Ray and Walt.

Ann, the name of the sainted mother of the Virgin Mary, was among the top girls’ names for centuries, in both the original English Ann spelling and the French Anne. Both left the Top 100 around 1970 and show no signs of returning, with Anne is the middle of the US Top 1000 and Ann dropped out of sight.

No longer tied to the hapless Ace Ventura, this jaunty, high-flying nickname name is starting to take flight among celebrity and other parents, with its countless positive references to doing well in tests and poker games, on the tennis court and golf course, and in the air.

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.

With its cool -X ending, Jax is an update on the classic nickname Jack, likely inspired by the rise of Jackson. It garnered attention in the US thanks to the game, Mortal Kombat II back in the '90s, and was pushed up the charts when it was used in the show Sons of Anarchy, in which Jackson "Jax" Teller is the central character.

Could Hal be the Jack, Max, or Gus of the future? It just might happen in the new nickname environment, especially with Cal and Cy feeling cool, and with the interest in vintage, cowboy-esque choices, considering Hal ranked in the US Top 1000 in the first half of the 20th century.

Short but energetic and substantial, Nia has special meaning for African-American parents, as it's one of the days of Kwanza. Nia also benefits by its similarity to (yet differentness from) the megapopular Mia.

May is a sweet old-fashioned name that hasn't been on the national charts in several decades, but is definitely sounding fresh and springlike. Parents are beginning to see it once more as one of the prettiest middle name options. May was as high on the list as Number 57 in the 1880s; it's now 228 on Nameberry.

Now that many dogs are named Max, it's safe to use this sleek, solid, regal name again for your child. And with the charm of its final x, its regal meaning, and its offbeat simplicity, Rex is definitely one to consider.

Bea is a former old lady name that's cute again as a short form — and is now beginning to stand on its own. Bee is a variation that, like Bea, can work as a diminutive for any name that starts with the letter B, or in the middle. Bea actually stood alone on the popularity lists for four years at the beginning of the twentieth century — and it could happen again.

Aya, barely more than a breath, is an international favorite, with origins in several languages and cultures. Popular throughout Europe, it ranks in the US Top 1000 and was chosen for nearly 470 babies in a recent year.

Lou, all by itself, is become fashionable for girls, which usually makes a name LESS fashionable for boys. But Lou, like Bill or Jim, is rarely used on its own for boys anyway. (You wouldn't name a boy Frederick Lou the way that girls are named Mary Lou or, in the case of Keri Russell's new baby, Willa Lou.) Long form Louis is getting cool again and, with the Lewis spelling, is the Number 2 name in Scotland.

An international take on Theo that would be easily wearable for a child in the US or any European culture, Teo is a simple but versatile choice. It's popularly used across a number of countries, including Georgia, Poland, Slovenia, Slovakia, Croatia, Czechia, Italy, England, and Bosnia and Herzegovina too.

In Ireland and Scotland, Mac and Mc mean "son of"; here, Mac is a generic fella, or a short form cooler than either Matt or Max. Mac can be a nickname of any longer Mac or Mc starting name such as McCoy or Macalister. If you want to make it feel more complete, you can always spell it Mack.