Max Britzelmayr (7 January 1839 – 6 December 1909) was a German mycologist and lichenologist who was a native of Augsburg.
He spent his career as a schoolteacher and Kreisschulinspektor (school district administrator) in Augsburg. He is known for his research of a class of fungi known as Hymenomycetes. He also conducted investigations of lichens native to southern Bavaria, including the Allgäu Alps.[1] In 1903 Britzelmayr started to issue exsiccata-like series, namely Lichenes exsiccati aus der Flora Augsburgs.[2]