TesterEnglish From the Old French nickname testard, essentially meaning "big head", for a know-it-all.
TõllEstonian Tõll is an Estonian surname derived from the mythological Estonian hero giant Suur Tõll ("Big Tõll" or "Tõll the Great") who lived on the island of Saaremaa.
ToramanTurkish Means "powerful young person, someone who looks big for his age" in Turkish.
TotakaJapanese From Japanese 戸 (to) meaning "door" and 高 (taka) meaning "tall, high".
ToyhacaoFilipino, Cebuano From Cebuano tuyhakaw meaning "to crane one's neck, to pull oneself up tall".
UentillieNavajo From Navajo ayóí meaning "very" and áníldííl meaning "husky, large".
UfugusukuOkinawan The Okinawan language reading of its kanji, meaning "big castle".
UlukayaTurkish From Turkish ulu meaning "great, large, exalted" and kaya meaning "rock".
UzumakiJapanese (Rare) This name combines 渦 (ka, uzu) meaning "eddy, vortex, whirlpool" or 太 (ta, tai, futo.i, futo.ru) meaning "big around, plump, thick" with 巻 (kan, ken, maki, ma.ki, ma.ku) meaning "book, coil, part, roll up, scroll, tie, volume, wind up."... [more]
VelichkoRussian Derived from Russian великий (velikiy), meaning "great, large".