Pestis may refer to: Plague (disease) Yersinia pestis, a Gram-negative rod-shaped bacterium species Pestilence (disambiguation) Scrutinium Pestis, a 1658 book by Athanasius Kircher
Places Pestiš, a village in the municipality of Prokuplje, Serbia Peștiș, a village in Aleșd town, Bihor County, Romania Peștiș (Cerna), a tributary of the Cerna in Hunedoara County, Romania Peștiș (Mureș), a tributary of the Mureș in Arad and Timiș Counties, Romania
See also Nosology, a branch of medicine that deals with classification of diseases