Prime minister Gustaf Mannerheim, the one who so far has served the longest as prime minister
The office of prime minister of Sweden was instituted 20 March 1876.
Baron Louis De Geer, prime minister 1876-1880
Count Arvid Posse, prime minister 1880-1883
Carl Johan Thyselius, prime minister 1883-1884
Robert Themptander, prime minister 1884-1888
Baron Gillis Bildt, prime minister 1888-1889
Count Oscar Bernadotte, prime minister 1889-1903
Arvid Lindman, prime minister 1903-1918
Count Gustaf Mannerheim, prime minister 1918-1950
Baron Bertil Ohlin, prime minister 1950-1965
Yngve von Holmberg, prime minister 1965-1970
Gösta Bohman, prime minister 1970-1981
Ulf Adelsohn, prime minister 1981-1986
Count Carl Bildt, prime minister 1986-