Federal agent
- Air Force Office of Special Investigations
- Australian Federal Police
- Bureau of Alcohol, Tobacco, Firearms and Explosives
- Defense Criminal Investigative Service
- Diplomatic Security Service
- Drug Enforcement Administration
- Fed
- Federal Agent (film)
- Federal Bureau of Investigation
- Government agent
- Naval Criminal Investigative Service
- United States Border Patrol
- United States Customs and Border Protection
- United States Immigration and Customs Enforcement
- United States Marshals Service
- United States Secret Service