瘟疫病毒属（Pestivirus）是黄病毒科的一个属。瘟疫病毒属的病毒主要感染哺乳动物，包括牛科和猪科的动物。瘟疫病毒属与动物的一些重大疾病有关，如猪瘟、牛病毒性腹泻和边界病等。

Pestivirus is a genus of viruses, in the family Flaviviridae. Viruses in the genus Pestivirus infect mammals, including members of the family Bovidae (which includes, but is not limited to, cattle, sheep, and goats) and the family Suidae (which includes various species of swine). There are currently four species in this genus including the type species Bovine viral diarrhea virus 1. Diseases associated with this genus include: hemorrhagic syndromes, abortion, fatal mucosal disease.