Pus is an exudate produced by vertebrates during inflammatory pyogenic bacterial infections.

Pus or PUS may also refer to: -pus, a taxonomic suffix meaning "foot" Pus (film), a 2010 Turkish film pus, the ISO 639-2 code for the Pashto language Gimhae International Airport, Busan, South Korea, IATA code Permanent Under-Secretary in the UK government , now Aalto University Sports Club, Finland

See also Puss (disambiguation)