Nils Johannes Sejersted (17 October 1865 â 19 September 1921) was a Norwegian military officer and director.
He was a son of Fredrik Christian Sejersted (1833âÂÂ1882), Lieutenant Colonel and director of the Norwegian Mapping and Cadastre Authority (then known as Norges Geografiske OppmÃÂ¥ling). Himself, Nils Johannes Sejersted became director of Mapping and Cadastre Authority too, and held the military rank of colonel. He died in the Nidareid train disaster.
He was a grandfather of Francis Sejersted.