Encyclopedias, Almanacs, Transcripts, and Maps
- Civil Rights Division
- Civil Rights Practice
- Civil Rights Removal
- Civil Rights Repeal Act 28 Stat. 36 (1894)
- Civil War, Espionage and Intelligence
- Civil–Military Relations
- Claims Court
- Clark Distilling Co. v. Western Maryland Railway Co. 242 U.S. 311 (1917)
- Clark, Charles E. (1889–1963)
- Clark, Tom C. (1899–1977)
- Clarke, John H. (1857–1945)
- Classic, United States v. 313 U.S. 299 (1941)
- Classified Information
- Clay, Henry (1777–1852)
- Clayton Act 38 Stat. 730 (1914)
- Clear and Present Danger
- Cleburne (City of) v. Cleburne Living Center, Inc. 473 U.S. 432 (1985)
- Clerks
- Cleveland Board of Education v. Lafleur 414 U.S. 632 (1974)
- Cleveland, Grover (1837–1908)