The Great Terror may refer to:
- The Reign of Terror (1793–1794), a period of extreme violence during the French Revolution, the last weeks of which are sometimes referred to as the Red Terror or Great Terror
- The Great Purge (1936–1938), a campaign of political repression in the Soviet Union
- The War on Terror (2001–2021), a global military campaign initiated by the United States following the September 11 attacks of 2001, and is the most recent global conflict spanning multiple wars
Topics referred to by the same term