The term xenon may refer to the following:
- a gaseous element with the symbol Xe and atomic number of 54, popularly known for its use in lighting
- an experiment aimed at finding dark matter
- a groupset (or gruppi) by Italian high-end bicycle component manufacturer Campagnolo
- a type of pickup truck manufactured by Indian automotive manufacturing company, Tata Motors
- Xenon 2 (or Xenon II), an autogyro (a type of flying machine) by Polish aircraft manufacturer, Celier Aviation
- LG Xenon (or LG GR500), a mobile phone by LG Electronics
- Microsoft XCPU (or Xenon), a processor used in Microsoft's Xbox 360 game console