Arcadi Aleksandrovich Gaydamak, (Hebrew: ארקדי אלכסנדרוביץ' גאידמק; Russian: Аркадий Александрович Гайдамак; born 1952 in Moscow, USSR) is a Russian-Israeli billionaire businessman. Gaydamak is also a French citizen, having lived mainly in France from 1973 until his return to Israel in 2000. He possesses Canadian and Angolan passports and has travelled, in the past, in the capacity of a representative of the government of Angola. He was awarded the Order of the Legion of Honour by the French Republic. His son Alexandre Gaydamak is also a businessman and owner of Portsmouth F.C. in England. In February 2007 he announced the establishment of an Israeli social movement, Social Justice, which became a political party in July 2007.