Savva Ivanovich Mamontov (Russian: Савва Иванович Мамонтов, IPA: [ˈsavə ɪˈvanəvʲɪtɕ ˈmaməntəf]; 15 October [O.S. 3 October] 1841, Yalutorovsk – 6 April 1918, Moscow) was a Russian industrialist, merchant, entrepreneur and patron of the arts.