Franz Oberwinkler (22 May 1939 in Bad Reichenhall, Upper Bavaria – 15 March 2018 in Tübingen) was a German mycologist, specialising in the fungal morphology, ecology and phylogeny of basidiomycetes. Oberwinkler earned his PhD in 1965 at the Ludwig Maximilian University of Munich studying under Josef Poelt. From 1967 to 1974 he was a research assistant and lecturer at the Institute of Systematic Botany, University of Munich, becoming professor in 1972. Between 1968–1969 Oberwinkler was Scientific Expert of the Food and Agriculture Organization at the Instituto Forestal Latino-Americano in Mérida, Venezuela.