Torbern Olaf Bergman (20 March 1735 Katharinberg, Sweden, – 8 July 1784 Medevi, Sweden) is a Swedish chemist and mineralogist noted for his 1775 Dissertation on Elective Attractions, containing the largest chemical affinity tables ever published.

Bergman is the first chemist to use the A, B, C, etc., system of notation for chemical species.