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.
Aars was known as the director of the bank Centralbanken for Norge.
He was also the first chair of Oslo Chamber of Commerce.