Jens Ludvig Andersen Aars (23 December 1852 – 22 May 1919) was a Norwegian politician. He was born in Horten as a son of Jens Ludvig Aars and Anette Lund, a nephew of Nils Fredrik Julius Aars and a grandson of Jens Aars. In October 1876 he married Hansine Henriette Vogt (1850–1921). On the paternal side she was a sister of Svend Borchmann Hersleb Vogt, and niece of Volrath Vogt, and on the maternal side she was a granddaughter of Hans Holmboe and great-granddaughter of Jens Holmboe.