Max Wilhelm Theiler (24 October 1899 – 26 February 1977) was a Swiss classical philologist who specialized in ancient philosophy.
He was educated at the universities of Zurich, Basel, Göttingen, and Berlin.
He obtained his doctorate from Basel in 1924, He was appointed Privatdozent in 1927, extraordinary professor at Kiel University in 1930, ordinary professor at Königsberg University in 1932, extraordinary (1944), then ordinary professor (1947–1968) of philology at Bern.
Theiler was elected a corresponding fellow of the British Academy in 1965.
This Swiss biographical article is a stub.