Number Names

Tertia—which is occasionally used in the UK, but rarely in the US, would make an unconventional but interesting possibility for the third child in a family. Terza and Terzo are lively Italian female and male variations.

Never as well known as that other Roman numeral name, Octavius, Tertius just might hold some appeal for the parent seeking a really obscure name with the patina of antiquity for her third son.

Pretty, zippy and almost unknown, this Italian name would suit a third child.

More unusual than Tessa, this would make an interesting, meaningful and attractive choice for a third child.

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.

Rhythmic name with both religious and geographical ties, commonly heard in Latin countries.

A name that feels both spiritual and trendy, Trinity surged up the charts in the early 2000s, following the release of The Matrix. In just two years, it made an impressive jump from the latter end of the charts to the US Top 100, where it remained for more than a decade.

The extra p makes Tripp more of a name and less of a Trip. Usually a nickname of a boy who's a third, but Tripp is sure to get more attention in its own right now as the name of Sarah Palin's daughter Bristol and Levi Johnston's son.

Ulan is a gentle, intriguing nature name used in the Philippines, though it might also be a Kazakh name meaning "young man", a Ghanaian name referring to a first born twin, or a Russian name, from uhlan meaning "cavalry, lancer".

In an epic poem, the personification of truth, beauty, and unity; this ancient name is popular in several European countries but less common in the US. The Oona spelling is slightly more popular but Una sleeker.