Mathurin Jacques Brisson (30 April 1723 ? 23 June 1806) was a French zoologist and natural philosopher.
Brisson was born at Fontenay-le-Comte. The earlier part of his life was spent in the pursuit of natural history, his published works in this department including Le R?gne animal (1756) and Ornithologie (1760). In 1759, he became a member of the French Academy of Sciences. After the death of R. A. F. Reaumur, whose assistant he was, he abandoned natural history, and was appointed professor of natural philosophy at Navarre and later at Paris. His most important work in this department was his Pesanteur Sp?cifique des Corps (1787), but he published several other books on physical subjects which were in considerable repute for a time.
He died at Croissy near Paris.