Stig Kjell Olof (Ola) Ullsten (23 June 1931 – 28 May 2018) was a Swedish politician and diplomat born in Umeå, Sweden. He was a long-time member and later leader of the Liberal People's Party and is best known for serving as Sweden's Prime Minister from 1978 to 1979. His public career combined party leadership, government posts and later work in the diplomatic service.

Political career and offices

Ullsten rose through the ranks of the Liberal People's Party to become its leader in 1978, a position he held until 1983. In a turbulent parliamentary period he led a single‑party minority government between 1978 and 1979, following the breakdown of a previous coalition. After the 1979 general election he served as foreign minister from 1979 to 1982 and held the office of deputy prime minister briefly in 1978 and again from 1980 to 1982.

  • Leader of the Liberal People's Party (1978–1983)
  • Prime Minister of Sweden (1978–1979)
  • Deputy Prime Minister (1978; 1980–1982)
  • Foreign Minister (1979–1982)

Approach and themes

Ullsten represented the liberal strand of Swedish politics, emphasizing civil liberties, individual rights and market‑oriented reforms within a broadly social democratic political landscape. As a political leader he was generally regarded as pragmatic and willing to seek compromises across party lines, a useful trait during an era of fragmented parliamentary majorities.

Diplomatic work and later life

Following his ministerial service Ullsten continued to serve his country in diplomatic roles and as a senior public figure. His later years were marked by contributions to foreign policy discussions and public life rather than front‑line partisan politics. He remained a recognizable figure in Swedish public affairs until his death on 28 May 2018.

Legacy and significance

Ola Ullsten is remembered as one of the prominent leaders of the Liberal People's Party in the late 20th century and as a prime minister who led a rare single‑party minority government in modern Swedish history. His tenure illustrates the dynamics of coalition politics in Sweden and the role smaller parties can play in forming and sustaining governments. For further contemporary references and records, see party and government archives as well as biographical entries by commentators and historians of Swedish politics (profile).