Jens-Frederik Nielsen, born on June 22, 1991, is a Greenlandic politician. He has served as the prime minister of Greenland since 2025 and holds the position of Chairman for Naalakkersuisut, the Government of Greenland. Nielsen is also the leader and Chairman of the Demokraatit party.

Prior to his current roles, Nielsen served as Naalakkersuisoq for Erhverv og Råstoffer (Minister for Business and Raw Materials) within Naalakkersuisut.