Paul Kummer (22 August 1834 – 6 December 1912) was a minister, teacher, and scientist in Zerbst, Germany, known chiefly for his contribution to mycological nomenclature. Earlier classification of agarics by pioneering fungal taxonomist Elias Magnus Fries designated only a very small number of genera, with most species falling into Agaricus. These few genera were divided into a large number of tribi ("tribes"). In his 1871 work, Der Führer in die Pilzkunde, Kummer raised the majority of Fries tribi to the status of genus, thereby establishing many of the generic names for agarics that are in use to this day.
From 1857 to 1863, he worked as a private lecturer, then served as a curate in Zerbst (1863–1877). From 1877 onward, he was a minister in Hann Munden.