M
- Madsen v. Women's Health Center, Inc.512 U.S. 753 (1994)
- Mahanoy Area School District v. B.L.141 S.Ct. 2038 (2021)
- Masson v. New Yorker Magazine111 S.Ct. 2419 (1991)
- Masterpiece Cakeshop v. Colorado Civil Rights Comm'n138 S.Ct. 1719 (2018)
- Mccreary County v. American Civil Liberties Union Of Kentucky545 U.S. 844 (2005)
- Mccullen v. Coakley134 S.Ct. 2518 (2014)
- Milkovich v. Lorain Journal Co.497 U.S. 1 (1990).
- Miller v. California413 U.S. 15 (1973)