| Litigants: | United States v. Furlong |
| Decidedate: | March 1 |
| Decideyear: | 1820 |
| Usvol: | 18 |
| Uspage: | 184 |
| Holding: | Felonies committed in international waters must be specifically defined by Congress, and the Offenses Clause is broad enough that Congress may criminalize offenses on U.S. ships anchored in foreign ports. |
| Majority: | Johnson |
| Joinmajority: | unanimous |
| Lawsapplied: | Offenses Clause |
United States v. Furlong, 18 U.S. 184 (1820), was a United States Supreme Court case in which the court held that felonies committed in international waters must be specifically defined by Congress, and the Offenses Clause is broad enough that Congress may criminalize offenses on U.S. ships anchored in foreign ports.[1] [2]