Johann Friedrich von und zu Mansbach (26 October 1744 – 15 March 1803) was a Hessian-Danish military officer.
He spent much of his career in Norway, participated in the Theater War, and commanded Fredriksten Fortress from 1790 to his death, reaching the rank of lieutenant general.
[3] Johann Friedrich von und zu Mansbach was a military officer in Hesse-Kassel before serving Denmark.
He served as leader of Dronningens Livregiment in Denmark from November 1772, with the rank of lieutenant colonel.
In 1801, when the War of the Second Coalition raged, Mansbach was especially tasked with commanding troops in Vestfold, fearing a British invasion—the Kingdom of Great Britain had recently attacked Denmark-Norway in the Battle of Copenhagen.