Stig Kjell Olof (Ola) Ullsten (born 23 June 1931) is a Swedish former politician and diplomat who was Prime Minister of Sweden from 1978 to 1979 and leader of the Liberal People's Party from 1978 to 1983.
Стиг Чель Улоф (Ула) Ульстен (Stig Kjell Olof (Ola) Ullsten) родился 23 июня 1931, Умео, Вестерботтен), — шведский государственный и политический деятель.