- McVeigh v. Cohen
- Memoirs v. Massachusetts
- Meritor Savings Bank v. Vinson
- Meyer v. Nebraska
- Miami Herald Publishing Company v. Tornillo
- Michael M. v. Superior Court of Sonoma County
- Michigan Department of State Police v. Sitz, et al.
- Michigan v. Long
- Michigan v. Summers
- Military Issues
- Miller v. California
- Miller v. Johnson
- Milliken v. Bradley
- Mincey v. Arizona
- Minersville School District v. Gobitis
- Minneapolis Star v. Minnesota Commissioner of Revenue
- Minnesota v. Dickerson
- Minnesota v. Olson
- Minor v. Happersett
- Miranda v. Arizona
- Mississippi University for Women v. Hogan
- Mississippi v. Johnson
- Missouri v. Jenkins
- Mistretta v. United States
- Mobile v. Bolden
- Monopolies and Antitrust Law
- Monroe v. Pape
- Moore v. East Cleveland
- Moose Lodge No. 107 v. Irvis
- Morehead v. New York
