Taelon

Talbot

Tallas

Despite its somewhat menacing meaning, this name has been widely used in recent years, probably due to the appeal of its trendy on ending. 

Talon

One of the more unusual <a href="https://nameberry.com/list/329/nature-baby-names">nature names</a>, that of a variety of pine tree. Tam might sleeken and modernize it.

Tamarack

This beautiful New Mexican pueblo locale has long attracted artists and skiers, and now may attract some baby namers as well. 

Taos

Taurus

This Scottish form of Thomas has a lot of charm, evoking images of men in plaid kilts playing the bagpipes. As for the 'ish' ending, it could either be seen as cozy and hamish, or a little wishy-washyish.

 Bottom line: If you're looking for a similar name with more worldly appeal than Travis or an offbeat namesake for an ancestral Thomas, you could do well to consider Tavish.

Tavish

This name of both a grayish-greenish-blue color and a kind of wild duck can be used for both boys and girls. 

Teal

Tearlach

Tedric

Tejas

Templar

Butler name, and also that of the rat in Charlotte's Web.

Templeton

When playwright Thomas Lanier Williams adopted the pen name of Tennessee, he created a new possibility among American place-names, although it's admittedly a bit bulky in size. 

Reese Witherspoon brought it back into the spotlight when she chose it for her son. While Tennessee's two most famous bearers are male, the name can work equally well for a child of any gender.

Tennessee

Terentino

Thaddeus, a distinguished, long-neglected name, has several areas of appeal: a solid New Testament legacy, a nice antique feel, and the choice of several more modern nicknames and international variations.
 In the Bible, Thaddeus was one of the original Twelve Apostles.
 Thaddeus has made quite a few screen appearances, ranging from Spongebob Squarepants to Police Academy to Get Smart (it was the given name of the Chief) to Harry Potter. As Tadzio—the Slavic version—he played a leading role in Thomas Mann's Death in Venice.
 In real life, Thaddeus Stevens was a dominant political figure during the Civil War. Mia Farrow has a son named Thaddeus.

Thaddeus

Thanos originated as a short form of Athanasios, a Greek name meaning "immortal." It is composed of the elements a, a negative Greek prefix, and thanatos, meaning "death." St. Athanasius, who used the Latin spelling of the name, was a bishop of Alexandria and known for his opposition to Arianism.
 
Though this is a perfectly respectable Greek choice, be aware that Thanos the Mad Titan is a sinister Marvel Comics villain.

Thanos

Thaxter

One of the coolest of names, thanks to legendary jazz pianist Thelonious Sphere Monk, who inherited this Latin-sounding German name from his father. It has been used very sparingly since the 1960's, with just a sprinkling of baby boys receiving the name each year, though it's one of the <a href="https://nameberry.com/list/317/unique-baby-names">unique baby names</a> we predict will get much less unique as more parents embrace its quirky charms.
 Monk's middle name Sphere is pretty unique too, a cousin of Cosmos and Cosmo.

Thelonious

This is one of the least known or used of the Theo names, quite possibly because of its last syllable. In Samuel Butler's 1903 novel The Way of All Flesh, there is a clergyman character named Theobald Pontifex.

 You might want to consider the French version Thibault or the Shakespearean Tybalt instead.

Theobald

As unlikely as it may seem, Theodore is a hot new hit name, vaulting into the Top 10 in 2021 for the first time ever and rising three more points last year to rank at Number 7.

Friendly nickname Theo may be responsible for some of that, though there are plenty of baby boys given Theo as their full name too. Add their numbers together along with those for Mateo and Teo, and they hands-down become the Number 1 boys' name.

Theodore and Mateo are far from interchangeable names, for sure, and some Theodores are called Teddy....or Theodore. But we predict an overwhelming number of little boys called Theo or Teo on American playgrounds over the coming years.

Theodore is a derivative of the Latin Theodorus, a variation of the Greek name Theodōros. The components are from the Greek words theos, meaning "God," and dōron, meaning "gift," giving Theodore the meaning "God-given" or "gift of God." Names with similar origins include Theodora, Dorothy, and Dorothea.
 
When Theodore Roosevelt took office in 1901, the name Theodore was in the Top 40 <a href="https://nameberry.com/boys-names">boy names</a>, with Teds and Teddys everywhere. After some damaging stereotypes—the chubby Chipmunk Theodore and Beaver Cleaver's real name—Theodore went into a decline, from which it has definitely made a recovery, thanks in part to the popular and likable nickname Theo.
 Theodore has been the choice of several celebrities, including Ivanka Trump, Bryce Dallas Howard, Natascha McElhone, and Ali Larter, not to mention being the fictional son of Christian and Ana in Fifty Shades of Grey.
 The name has a distinguished history. In addition to being presidential, it was borne by novelist Dreiser, poet Roethke, and French painter Gericault, and it was the first name (spelled Theodor) of Dr. Seuss.
 Among the well-known Teds, baseball's Williams and musician Nugent were born Theodore, but Ted Turner was christened Robert, and Ted Kennedy and Ted Danson were originally Edward.
 The beloved character Laurie in Little Women was named Theodore Laurence.

Theodore

Theodosios

Multisyllabic New Testament relic dimly recalled from the Thornton Wilder novel Theophilus North.

Theophilos

Could be an unconventional route to Theo.

Theory

A common first and last name in France and, especially, Belgium, more often spelled Thibault.

Thibaut

A solid classic with plenty of history, Thomas strikes the balance between strength and gentleness. A favorite in the UK, a staple in France, and Australia, and never absent from the US Top 100, Thomas feels like a safe bet and a name that fits into any era. 
The Greek form of the Aramaic name Ta’oma, Thomas means “twin.” It came about in the Bible because there were too many apostles called Judas, and so, Thomas became the “twin”, to reflect his close brotherhood with Jesus. 
Known as “Doubting Thomas” due to his initial skepticism of Jesus’s resurrection, he went on to become a martyr, and there was no need to doubt Thomas’s potential as a given name. 
Brought into common usage by the Normans, it was then always among the 5 most common English names for boys at any point between the 13th and 19th century. 
While it has fallen down the US charts in recent years, it remains a familiar and trusted choice. Given to over 6000 boys every year, it has made a steady climb back into the Top 50. 
Across the pond in the UK, both Thomas and Tommy make the Top 30, while Tom, Tommy-Lee and Tommie have made their mark in the Top 1000. 
As a well-established classic, Thomas naturally comes with plenty of noteworthy namesakes. “Thomas the Tank Engine” might appeal to you kids, but there’s also the theologian, Sir Thomas Aquinas, the cardinal Thomas Wolsey, the Founding Father, Thomas Jefferson. the philosopher, Thomas Hobbes, and the writer, Thomas Hardy. 
More recent namesakes for those who aren’t into history include actors Tom Hardy, Tom Cruise, and Tom Hiddleston, singers Tom Parker and Tom Fletcher, Olympic diver Tom Daley, and Thomas Sanders, of YouTube fame. 
A timeless all-rounder, Thomas comes with the intuitive nicknames, Tommy and Tom, which feel sweet for a child but not too cutesy for a grown-up. For more unexpected options, you could try the nature-inspired Moss or Scottish Tam. 
Unlikely to go out of style anytime soon, Thomas is a refined but approachable choice. If the popularity does give you pause, however, you could try the surname-inspired Thompson, or an <a href=“https://nameberry.com/list/492/100-classic-boys-names--below-the-top-1000/all”> underused classic</a> like Marius, Rufus, or Phinneas. 
Alternatively, there is a wealth of interesting variants to ponder, from Italian Tommaso and Scottish Tavish to Croatian Tomo– and for girls, there’s Thomasina, Tomine and Tamsin.

Thomas

Thor, the powerful name of the Norse god of thunder, strength and rain, would make a bold statement. Long a comic book staple, Thor has now invaded the big screen, and could land on birth certificates as well.
 Thor Heyerdahl was a famous Norwegian anthropologist/adventurer, author of the book Kon Tiki.
In Norse mythology, Thor was the son of Odin--another crossover name possibility--who was sometimes referred to as Bjorn in Old Norse poetry. Tor is a popular variation (which is also the Hebrew name of a bird that symbolizes the arrival of spring).

Thor

Thorald

A dashing French surname name most famously borne by Henry David Thoreau, an American naturalist, writer and philosopher who influenced such notable figures as Leo Tolstoy, Mahatma Gandhi, and Martin Luther King Jr. The most common modern American pronunciation is "thor-OH", with emphasis on the final syllable, although Thoreau himself pronounced it "THOR-oh".

 The origins of the surname are not entirely clear, although one possibility is that it derives from a diminutive form of the Old French tor, meaning "bull" (the root of the modern French word taureau). A fitting choice for a Taurus baby boy!

 Thoreau may also be related to the Norse name Thor "thunder", or to the Germanic name Theodoric and its French form Thierry "ruler of the people".

 With its on-trend sound and literary pedigree, Thoreau certainly makes for a rare but appealing choice. Zac and Kate Hanson used it as a middle name for their fifth child, born in 2021.

Thoreau

Thorfin

Thorsten

Thorvald

Timaeus is an ancient name that appears in both Plato's Dialogues and in the New Testament. Might make a so-old-it's-new-again version of Timothy. The feminine variation is Timea.

Timaeus

Kids would be more likely to associate this name with the hyperactive meercat in "The Lion King" than with the ancient Greek philosopher or Shakespearean character, which could cause playground problems. 

Timon

Tivadar

Tobias is one of a number of s-ending <a href="https://nameberry.com/boys-names">boys' names</a> that are riding a wave of popularity. With its Old Testament-Dickensian feel, it's a name with a distinguished pedigree. 
Tobias is the Greek form of the Hebrew Tobiah, which was derived from the name Toviyah. Toviyah was created from the elements tov, meaning "good" and yah, representing the Hebrew God. Tobias is the name of several biblical figures but is primarily associated with the story of Tobias and the Angel.
 A contemporary bearer is Tobias Wolff, author of A Boy's Life. Tobias Smollett was a major eighteenth century Scottish novelist. Tobias Snape, meanwhile, is a Harry Potter character.
 
The short form Toby has a life of its own, used independently at least as far back as Shakespeare's time, with Sir Toby Belch in Twelfth Night. Toby also was the name of a character on The West Wing. Actor Tobey Maguire was born Tobias and named his son Otis Tobias.
 
There is also the rarely used but still viable daddy of them all --Tobiah, the name of a rebel Hebrew king

Tobias

If you're tired of Oliver, you might consider this energetic three-syllable surname instead, so you could have a little Tolly instead of an Ollie.
 Tolliver is a not-too-obvious occupational Scottish surname dating back to the time of armor makers. Heard much more often as a surname, there have been Tollivers in soap operas like General Hospital and Cy Tolliver was a character on Deadwood; in real life, Melba Tolliver is a barrier-breaking African-American TV journalist.

Tolliver

The new kid on the block in terms of Christopher short forms, it was introduced into the mix by actor Topher Grace, who didn't like Chris. 

Topher

One of the less obvious newly plausible occupational names, could instill a sense of adventure in a child. 

Traveler

Has a laid-back rural feel some would associate with country singer Travis Tritt; Kyra Sedgwick and Kevin Bacon chose it for their son. Travis Scott, born Jacques Webster Jr., a popular rap artist, is another famous Travis.

Travis

Tucker has more spunk than most last-name-first-names, and also a positive, comforting ("Tuck me in, Mommy") feel. 
 Tucker got something of a preppy image via bow-tied conservative TV commentator Tucker Carlson, and quite the opposite from writer/blogger Tucker Max, author of the #1 best-seller I Hope They Serve Beer in Hell. Tucker Crowe is a character in the Nick Hornby novel Juliet, Naked.

Tucker

Twain can be thought of as a modernization (and possible namesake) of the dated Wayne, seasoned with the humor of Mark Twain, who adopted it from a river term.


Twain

Txomin

ScarlettRobin's list "Tenacious T Names [boys]" of 44 great name ideas: Taelon - Txomin!