Tucker has more spunk than most last-name-first-names, and also a positive, comforting ("Tuck me in, Mommy") feel.

A strong single-syllable surname with a joyful meaning, Tate is finding a place on more and more birth certificates.

Cosy and warm but with plenty of substance and strength, Tess is a literary diminutive that works perfectly well as a stand-alone name. Stylish in the Netherlands, it currently sits outside the Top 1000 in the US, where Tessa and Teresa are currently preferred.

Tatum is strong, distinctive, energetic, and recommended, especially if your last name is as congenial as O'Neal. The name is now used for both genders, with the balance running about two to one in favor of the girls.

One of the hot two-syllable T names of the nineties (along with Tyler, Trevor, and Taylor), and well represented on soap operas; Tanner is still widely used, but its popularity is declining.

Tatum is one of the rare examples of a name that was exclusively female, as in Tatum O'Neal, but now is used for boys too, entering the male Top 1000 in 2010. Khloe Kardashian made headlines when she revealed her son is named Tatum Robert, breaking from the family theme of using unique word names for their children.

Tamsin is an offbeat name occasionally heard in Britain and just waiting to be discovered here. U.K. actress Tamsin Greig is a star of the show Episodes, Tamsin Olivier is the daughter of Joan Plowright and Sir Laurence Olivier..

A 1970s beach boy surfing buddy of Scott, Brad, and Chad, Todd is given to relatively few babies these days.

Taylor was much more popular throughout the 1990s for both genders than it is today. Close to the Top 50 boys' names in the mid-1990s, Taylor recently fell out of the Top 500 for boys and out of the Top 100 for girls, and is predicted to continue on a downward trajectory for both genders. Similar but more stylish baby names today include Sawyer, Sayer and Thayer.

The presidential Tyler rocketed up popularity charts in the late 1980s and early 1990s (it ranked Number 9 for that entire decade), along with cousin Taylor, becoming almost pandemic across the land-- and to make matters more confusing, both (especially Taylor) have been used for girls as well.

Thatcher is an open and friendly freckle-faced surname, fresher sounding than Tyler or Taylor, that dates back to the days of thatched-roof cottages. It is catching on with modern parents—it reached the US Top 1000 for the first time in 2013.

Tina, despite its petite and tinkly image, is apt these days to be replaced by the more elegant originals, Christina and Martina.It does have some strong namesakes, though, in Tina Turner (born Anna Mae), Tina Brown (born Christina), Tina Fey (born Elizabeth), and photographer Tina Barney (born Tina).

A surprise recent hit revival with cutting-edge British, Tribeca and Malibu parents; Tillie, also spelled Tilly, is cute, frilly, and sassy all at once. Tilly is currently Number 90 on the England-Wales popularity list, joining such other Top 100 nickname names as Milly, Maisie, Kitty and Lottie. Tillie along with these other short forms transform proper names rooted in other cultures into true English names for girls.

Taylor is one of the prime unisex surnames used for girls and has also been a soap opera favorite. Taylor was in the Top 10 for the last several years of the twentieth century, so that now it tends to feel a little nineties – though Taylor Swift is keeping it in the spotlight and Tay is a charming nickname. Garth Brooks and Bryan Cranston have daughters named Taylor; Taylor Schilling portrays lead Piper Chapman in Orange is the New Black.

Similar in sound to the French "Thibault", which is far more popular, Tybalt is best known as the bloodlustful and brawling cousin of Juliet in Shakespeare's Romeo and Juliet. Perhaps this connotation has kept parents from using Tybalt. However, given the recent fad for all things Theo, Tybalt might offer a familiar yet unusual option for parents who like the meaning but want to swim against the current. Cute nicknames Ty and Tibby might also appeal.

Tobias-related name that makes an attractive and modern-sounding form of the biblical original. It was recently chosen by Karolina Kurkova for her son.

Originally a nickname for a third-generation son, as in Thurman Thackeray III, Trey is now being given to others, and it has also expanded to Treynor and Treyton.

Made famous in fifties movies as a wholesome backwoods gal, Tammy was a Top 10 choice from the mid-60s to early-70s, but is now given to fewer than 100 babies per year in the US.

The intriguing and creative feeling Twila is a vintage name that was semi-popular in the first half of the 20th century. Evoking the glowing light of twilight, it might appeal as an alternative to Lila, Tyler, or Skylar, or for the for the grown-up fans of the Stephanie Meyer's vampire series, Twilight.

Twila — also spelled Twyla — has a number of possible origins. On one hand, it could simply be inspired by the word "twilight", connecting it to the time of evening when the sun is below the horizon. Alternatively, it could come from the word "twill", a type of textile weave that creates a sturdy fabric, or, it could be inspired by the French Étoile (said EH-TWAL), meaning "star".

Turner is a name that's both preppy and painterly, recalling the exquisite watercolor seascapes of British painter J.M.W. Turner. An occupational name in the Taylor-Carter mold, Turner is a more distinctive choice than many of the usual suspects.