Jan Heemskerk Abrahamszoon (Dutch pronunciation: [jɑn ˈɦeːmskɛr(ə)k ˈaːbraːɦɑmˌsoːn]; 30 July 1818 – 9 October 1897) was a Dutch politician who served as Chairman of the Council of Ministers from 1874 to 1877, and again from 1883 to 1888.

His son, Theo Heemskerk also served as Chairman of the Council of Ministers.

He was the son of Abraham Heemskerk and Joanna Jacoba Stuart.

[1] His son Theo Heemskerk (1852–1932) was Chairman of the Council of Ministers from 1908 to 1913.

[3] His son Jan Frederik Heemskerk (1867–1944) was a member of the House of Representatives.