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Tatiana was derived from Tatius, a Sabine-Latin family name of unknown origin. Titus Tatius was the name of an ancient king who ruled over the Sabines, an ancient Italic tribe who lived near Rome. The Romans used the name Tatius even after the Sabines died out and created the derivative forms Tatianus and Tatiana. The names were eventually disseminated throughout the Orthodox Christian world, including Russia.

A pretty, rarely used Greek name, Thalassa is the ancient personification of the sea, particularly the Mediterranean, who is sometimes considered the mother of Aphrodite. In 1991, a newly discovered moon of Neptune was dubbed Thalassa.

This ancient name, belonging to a Byzantine empress, may be difficult to wear. The English variation Tiffany may be more wearable.

Pronounced TEE-bow, this version, which is also a very common surname in France, has a lot more charm than the name it derives from — Theobald. A variant spelling is Thibaut.

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".

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.

A fairly common Hebrew name without much crossover potential.

Not many parents would want to use Tisa for its literal meaning in this era of smaller families, but Tisa is a name with much crossover appeal. Simple and straightforward, it's also both distinctive and feminine and relates to similar-sounding Western names such as Lisa and Trisha and Tea. If you're looking for an African name that can bridge cultures, Tisa is an excellent pick.

America's Next Top Model contestant Toccara Jones introduced this rhythmic choice into the lexicon.

Used for a free-spirited character on a 1990s sitcom, this name of a beautiful Southern California canyon does have an unconventional aura.

Tosca is one operatic heroine that has never taken off as a baby name -- there were no babies named Tosca in the US last year -- but it's the name of entrepreneur Elon Musk's sister so may benefit from some referred publicity.

An alternative spelling of Tristan, and also the modern Welsh form of the legendary hero's name.

Udoka is an Igbo-Nigerian name derived from the word Udo, meaning peace.