Charles Immanuel Forsyth Major (15 August 1843, Glasgow – 25 March 1923, Munich) was a Scottish-born, Swiss physician, zoologist and vertebrate palaeontologist.
Major was born in Glasgow and studied at Basel and Zurich Universities in Switzerland and later Göttingen in Germany.
The Italian government supported him in 1877 and he collected fossils from Calabria, Corsica, Sardinia, and Sicily.
In 1886, he stopped practising as a physician and began to study fossils in the Greek Archipelago with his collections going to the College Galliard at Lausanne and to the British Museum (Natural History).
He studied the lemur fauna, both extant and extinct, discovered the new family Megaladapidae (Major 1893), genus and species of the extinct giant lemur Megaladapis madagascariensis (Major 1893), and five new species in the genera Lepilemur and Cheirogaleus.