US Popularity Rank: 382

Origin: Scottish

Meaning: Round-top hill

Another memorable name for a member of the Jolie-Pitt clan, Knox is Angelina and Brad’s boy twin, born in 2008 and named after a Pitt ancestor. The next year the name took leaps and bounds up the baby-naming charts, as often happens after an A-lister gives birth. Knox, which has been around since at least the 13th century, is derived from a Scottish surname that came from the Old English cnocc which means “round-top hill.”