Roh or ROH may refer to: Roh (film), a 2020 Malaysian horror film Roh (name), a Korean surname Roh, Maré, New Caledonia Revoluční odborové hnutí, labour union in Czechoslovakia 1945–1990 Ring of Honor, American professional wrestling promotion Royal Opera House, London, England Runs of homozygosity, a technical term used in population genetics Formula of a generic alcohol (substituent R, Oxygen, Hydrogen) The ISO 639-3 code for the Romansh language cs:Roh