Karl Albert Staaff (21 January 1860 – 4 October 1915) was a Swedish liberal politician and lawyer.
He was chairman of the Liberal Coalition Party (1907–1915) and served twice as Prime Minister of Sweden (1905–1906 and 1911–1914).Staaff was active in the Swedish movement for universal suffrage, and as the Liberal party's Prime Minister he presided in 1905 over an attempt to introduce universal and equal suffrage for men.
Due to conservative intervention, Staaff's proposal for first past the post was ultimately scrapped for a proportional system.
In 1912, the period of leave that women were allowed following a child’s birth was extended to 6 weeks, and in 1913 a tax-financed pension scheme was introduced.Staaff ran into sharp conflict with the conservative Swedish establishment, and became a hated figure in the Conservative, pro-Monarchic and anti-Democratic establishment.
An intense smear campaign was launched against him, picturing him as the destroyer of Swedish tradition and society: wealthy Stockholmers could even buy ash-trays shaped as his head.
His staunch anti-military politics created the greatest fundraising in the Swedish history until that time, the 12 M kronor coastal battleship HSwMS Sverige where the funds where raised in a few months in 1912.