Olympus Corporation is a Japan-based manufacturer of optics and reprography products. Olympus was established on 12 October 1919, initially specializing in microscope and thermometer businesses. Olympus enjoys a majority share of the world market in gastro-intestinal endoscopes. It has a roughly 70% share of the global market whose estimated value is US$2.5 billion. Its global headquarters are in Shinjuku, Tokyo, Japan.

In 2011, the company gained coverage in global media when it fired after two weeks its newly appointed British chief executive (CEO) Michael Woodford, a 30 year Olympus veteran, and Olympus' president and chief operating officer (COO) since April that year, who had sought to probe financial irregularities and unexplained payments of hundreds of millions of dollars following his appointment as CEO.