Equine pegivirus (EPgV) is a virus in the genus Pegivirus of the family Flaviviridae.

It was discovered in 2013 in blood of horses and causes chronic infections.

[1] EPgV is not known to be responsible for any disease in horses.

[1][2] In a serosurvey of EPgV and related viruses, antibodies to EPgV were detected in the majority of horses, indicating a high prevalence in them.

[2]