Marwan Koukash (born in Palestine, December 1958) is a businessman and racehorse owner whose horses have won races including the Critérium de Maisons-Laffitte, Cesarewitch Handicap, City and Suburban Handicap, Ayr Gold Cup and Chester Cup. A 2018 Channel 4 documentary programme, My Millionaire Migrant Boss, stated his wealth at £50 million. Koukash is often referred to as a multi-millionaire by the media.