Magnus Andreas Thulstrup (13 April 1769 – 18 May 1844) was a Norwegian surgeon.
From 1826, he was chief surgeon at Oslo University Hospital, Rikshospitalet.
He served as a member of the commission for pharmaceutical legislation and The Norwegian Medical Society (Det Norske Medicinske Selskab).
His background was in the military field cutting profession, which developed into modern-day anatomy and surgery.
His military doctor's career culminated in 1819 with the position of Norwegian general surgeon.