Look up crystal ball in Wiktionary, the free dictionary.
A crystal ball is a scrying or fortune telling orb object
Crystal Ball may also refer to:
- Crystal Ball (detector), a hermetic particle detector
- Crystal Ball function, a probability density function
- Crystal Ball (G.I. Joe), a fictional villain in the G.I. Joe universe, member of Cobra
- Sabato's Crystal Ball, a web site analyzing and predicting national political races
- "The Crystal Ball" (fairy tale), a German fairy tale collected by the Brothers Grimm
- The Crystal Ball (film), a 1943 film starring Ray Milland
- The Crystal Ball (painting), a 1902 painting by John William Waterhouse
- Crystal Ball, a "lifeline" in the Who Wants to Be a Millionaire? franchise