United States v. Schooner Amistad, 40 U.S. (15 Pet.) 518 (1841), was a United States Supreme Court case resulting from the rebellion of Africans on board the Spanish schooner La Amistad in 1839. It was an unusual freedom suit that involved international diplomacy as well as United States law. The historian Samuel Eliot Morison described it in 1969 as the most important court case involving slavery before being eclipsed by that of Dred Scott v. Sandford in 1857.
La Amistad was traveling along the coast of Cuba on her way to a port for re-sale of the slaves. The Africans, Mende people who had been kidnapped in the area of Sierra Leone, in West Africa, illegally sold into slavery and shipped to Cuba, escaped their shackles and took over the ship.