Encyclopedias, Almanacs, Transcripts, and Maps
- Air Force Office of Special Investigations, United States
- Air Marshals, United States
- Ake v. Oklahoma 470 U.S. 68 (1985)
- Al-Aqsa Martyrs Brigade
- Al-Gama'A Al-Islamiyya (Islamic Group, IG)
- Al-Husayni, Al-Hajj Amin
- Al-Ittihad Al-Islami (AIAI)
- Al-Jama'A Al-Islamiyyah Al-Muqatilah Bi-Libya
- Albertson v. Subversive Activities Control Board 382 U.S. 70 (1965)
- Alderman v. United States 394 U.S. 165 (1969)
- Alex Boncayao Brigade (ABB)
- Alexander v. Holmes County Board of Education 396 U.S. 19 (1969)
- Alien and Sedition Acts Naturalization Act 1 Stat. 566 (1798) Alien Act 1 Stat. 570 (1798) Alien Enemies Act 1 Stat. 577 (1798) Sedition Act 1 Stat. 596 (1798)
- Alien Registration Act 54 Stat. 670 (1940)
- Alien Suffrage
- All Deliberate Speed
- Allen v. Wright 468 U.S. 737 (1984)
- Allen-Bradley Company v. Local Union #3 325 U.S. 797 (1945)
- Allgeyer v. Louisiana 165 U.S. 578 (1897)
- Allied Democratic Forces (ADF)