Fiat Lux (Latin, "Let there be light"), comes from the third verse of the Book of Genesis.

Fiat Lux may also refer to: Fiat Lux (band), a 1980s English synthpop band "Fiat Lux", a poem by Lynda Hull Fiat Lux, a science fiction novella by Walter M. Miller, Jr. Fiat Lux (UFO religion), a cult based in Germany Fiat Lux (film), a 1923 Austrian film Fiat Lux, UC Berkeley motto

See also Let There Be Light (disambiguation)