Mathurin Jacques Brisson (French pronunciation: ​[matyʁɛ̃ ʒak bʁisɔ̃]; 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 field included Le Règne animal (1756) and the highly regarded Ornithologie (1760). A significant work involving the "specific weight of bodies" was his Pesanteur Spécifique des Corps (1787). In his investigations of electricity, Brisson was opposed to the theories of Priestley and Franklin.