Olympus can refer to:

• a Japanese optics company: see Olympus company
• Rolls-Royce Olympus, a jet engine and marine turbine
• several mountains:
  • Home of the gods in Greek mythology: see Mount Olympus
  • An extinct volcano on Mars and the largest known mountain in the solar system: see Olympus Mons
  • Olympus in the Troodos Mountains of Cyprus
  • Olympus in the Greek island of Karpathos
  • There are also as many as 18 other mountains by the same name, including ones in the Greek islands, Asia Minor, New Zealand, and 8 peaks in the United States (see table).