Giacomo Bresadola (
Mezzana,
Trento; often given as
Giacopo) 14 February 1847 –
Trento 9 June 1929) was an eminent
Italian mycologist. Fungi he named include the deadly
Lepiota helveola and
Inocybe patouillardii, though the latter is now known as
Inocybe erubescens as this latter description predated Bresadola's by a year. He was a founding member of the
Société mycologique de France (Mycology Society of France).