Encyclopedias, Almanacs, Transcripts, and Maps
- Pennsylvania Constitution of 1776 (August 16, 1776)
- Pennsylvania v. Nelson 350 U.S. 497 (1956)
- Penry v. Lynaugh 492 U.S. 302 (1989)
- Pensacola Telegraph Co. v. Western Union Telegraph Co. 96 U.S. 1 (1878)
- Penumbra Theory
- People Against Gangsterism and Drugs (PAGAD)
- People v. Croswell 3 Johnson's Cases (N.Y.) 336 (1804)
- Per Curiam
- Peremptory Challenges
- Perez v. United States 402 U.S. 146 (1971)
- Perry Education Association v. Perry Local Educators' Association 460 U.S. 37 (1983)
- Personal Accounts of the Middle East Conflict
- Personal Liberty Laws
- Personnel Administrator of Massachusetts v. Feeney 442 U.S. 256 (1979)
- Peru, Intelligence and Security
- Peters, Richard (1744–1828)
- Petit Jury
- Petition of Right (June 7, 1628)
- Petroleum Reserves, Determination
- PFIAB (President's Foreign Intelligence Advisory Board)