Johan Georg Ræder (2 August 1751 – 13 November 1808) was a Norwegian military officer.
He was born in Meldal as a son of Johan Christopher Rhäder and his second wife Cathrine Margrethe Riiber.
He was the grandson of Johan Georg Rhäder, the person who immigrated to Norway and started the family branch there.
[2] In the war of 1808–1809 Ræder had notable roles in the victorious Battle of Trangen and the non-victorious Skirmish of Mobekk.
[1] He died, and Carl Oscar Munthe called it the biggest loss of a single man in the war.