Johann Georg Roederer (May 13, 1726 – April 4, 1763) was a German physician and obstetrician who was a native of Strasbourg. He was father-in-law to historian August Ludwig von Schlözer (1735–1809).
Roederer studied medicine at Leiden, Paris and London, and afterwards was a pupil at the midwifery school in Strasbourg under Johann Jakob Fried (1689–1769). Through a recommendation from Albrecht von Haller (1708–1777), he was appointed the first professor of obstetrics at the University of Göttingen in 1751 by George II, the British monarch and elector of Hanover.
Among his written works was a 1753 publication on the "elements of obstetrics" titled Elementa artis obstetriciae in usum auditorum, and a treatise involving observations made with Carl Gottlieb Wagler (1731–1778) concerning the typhoid epidemic at Göttingen (1757–1763). In 1757, Roederer was elected a foreign member of the Royal Swedish Academy of Sciences and was also a member of Académie Royale de Chirurgie. He died in Paris on April 4, 1763 at the age of 36. After his death, his position at Göttingen was filled by Heinrich August Wrisberg (1739–1808).