Jacob Brønnum Scavenius Estrup,, was a Danish politician, member of the Højre party. He was Interior Minister from 1865 to 1869 in the Cabinet of Frijs and Council President as well as Finance Minister from 1875 to 1894 as the leader of the Estrup Cabinet. At 19 years, he was the longest serving Danish prime minister.

The Estrup cabinet was the government of Denmark from 11 June 1875 to 7 August 1894. It replaced the Fonnesbech Cabinet and was succeeded by the Reedtz-Thott Cabinet on 7 August 1894. It is the longest sitting government in Danish history.