Black Wednesday was a British financial crisis on 16 September 1992.

Black Wednesday may also refer to:

• Other one-time events:
  • Black Wednesday 1878, a political crisis in Victoria, Australia
  • Black Wednesday (air travel), a 1954 crisis in air-traffic control
  • Black Wednesday (comic), a 1959 Disney comic by Carl Barks
  • Black Wednesday, a day of despair in the 1967 Chicago White Sox season
  • 1974 Super Outbreak, April 3, 1974, the most violent tornado outbreak on Record with 30 out of 148 Tornadoes being of F4-F5 intensity, with 7 F5 Tornadoes.
  • Black Wednesday, a day in 1981 when Michael Scott fired forty employees at Apple Computer
  • Black Wednesday, Wednesday 26th March 1986, the day when Swindon Works closed after 143 years of operation.
  • Black Wednesday, a day of mass sexual assault in Egypt in 2005
  • The most prolific day with Tornadoes in Recorded History, 2011 Super Outbreak, which saw 216 tornadoes with 15 Violent Tornadoes and 4 EF5 Tornadoes.
  • The first Wednesday of the 2013 Wimbledon Championships
• Black Wednesday in United Kingdom health care, first Wednesday in August, parallel to U.S. "July effect"

• Bloody Wednesday (disambiguation)

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