Soini Otso Olavi Palasto, last name until 1934 Planström (17 June 1912 Viipuri – 28 March 2002 Helsinki ) was a Finnish diplomat and Ambassador. Palestin was born in Viipuri to family of merchant Karl Gustaf Planström and Aino Alina Sandström. He graduated in 1930, completed a general law degree in 1937 and graduated as a Bachelor of Law. He served as Division Officer for the Political Department of the Ministry of Foreign Affairs from 1953 to 1955, Deputy Director General from 1955 to 1958, as Consultative Officer from 1958 to 1959 and Head of the Legal Department from 1959 to 1961.