Jacques Forestier (27 July 1890, Aix-les-Bains – 17 March 1978) was a French internist who was a pioneer in the field of rheumatology.

Forestier studied medicine in Paris, later working at Hôpital Cochin, where he became interested in rheumatology and its treatment.

Forestier is remembered for his introduction of gold salts as a remedy for rheumatoid arthritis.

Forestier is also known for his work with polymyalgia rheumatica and diffuse idiopathic skeletal hyperostosis.

Forestier competed in the 1920 Summer Olympics as rugby union player for France.