The Terrorism Act may refer to legislation in various countries:
South Africa
- Terrorism Act No 83 of 1967
United Kingdom
- Prevention of Terrorism Act (Northern Ireland), laws passed between 1974 and 1989 to deal with terrorism in Northern Ireland
- Terrorism Act 2000
- Anti-terrorism, Crime and Security Act 2001
- Prevention of Terrorism Act 2005
- Terrorism Act 2006
- Terrorism (Northern Ireland) Act 2006
- Terrorism (Protection of Premises) Act 2025
See also
- Anti-terrorism legislation
- :Category:Terrorism laws