Martti Arvo Henrik Rousi is a Finnish cellist. Martti Rousi started playing the cello at the age of 8 in Turku. His first teachers were Timo Hanhinen and Seppo Kimanen. He later studied at the Sibelius Academy under Artos Noras, and received his diploma in 1983. 1985-1986 studied with Janos Starker at Indiana University.