Pestis

Pestis may refer to:
 * Plague (disease)
 * Yersinia pestis, a Gram-negative rod-shaped bacterium species
 * Pestilence (disambiguation)
 * Pestis (Roman mythology), the daemon/personification of pestilence, plague, illness, sickness and disease
 * Phthisis, one of the Nosoi or Pestis
 * 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