Meaning & Origin
A surname.
Lux is a boy's and girl's baby name of Latin origin, from the Latin word meaning 'light' — the base unit of illuminance in physics, and one of Latin's most universally resonant words. Lux appears in the Bible's opening lines: fiat lux — 'let there be light.'
Short, powerful, and loaded with meaning, Lux is the kind of name that needs no explanation and makes an immediate impression. The creation narrative's first act is the bringing of light — making Lux one of the most theologically and linguistically rich three-letter names available. Actress Ryan Reynolds and Blake Lively named their daughter James, but Lux has similar ultra-minimal celebrity appeal.