Plessy v. Ferguson , (1896), was a landmark United States Supreme Court decision in the jurisprudence of the United States, upholding the constitutionality of racial segregation even in public accommodations (particularly railroads), under the doctrine of " seperate but equal".

"Separate but equal" remained standard doctrine in U.S. law until its final repudiation in the later Supreme Court decision Brown v. Board of Education(1954).