Harsum is a village and a municipality in the district of Hildesheim, in Lower Saxony, Germany. It is situated approximately 6 km north of Hildesheim, and 25 km southeast of Hanover.Personalities Johannes Nordhoff (1870-1950), Chairman of the Employers' Association of German Insurance Companies Joop Bergsma (1928-2011), Roman Catholic clergyman and theologian