Georg Reichwein, Sr. (1593–1667) was a Norwegian military officer. Born in Kassel, he emigrated to Denmark-Norway in 1628. as king Christian IV established the first standing army in Norway. In 1645 he assumed command of the Akershusian National Infantry Regiment. He was noted for fighting from 1644 to 1645 in the Torstenson War that was ended by the Treaty of Brömsebro, from 1657 to 1658 in the Dano-Swedish War that was ended by the Treaty of Roskilde and from 1658 to 1660 in the Dano-Swedish War that was ended by the Treaty of Copenhagen. He was given peerage in 1655.