W
- Weaver v. Palmer Bros. Co.270 U.S. 402 (1926)
- West Coast Hotel Co. v. Parrish300 U.S. 379 (1937)
- West Lynn Creamery v. Healy512 U.S. 186 (1994)
- Western & Southern Life Insurance Co. v. State Board Of Equalization Of California451 U.S. 648 (1981)
- Wickard v. Filburn317 U.S. 111 (1942)
- Williamson v. Lee Optical Co.348 U.S. 483 (1955)