Kirk Fox (born August 26, 1969) is an American actor, screenwriter, and stand-up comedian. On screen, he is best known for his recurring roles: Sewage Joe in Parks and Recreation, Kenny Boy in Reservation Dogs, and Pat McCardle in Jury Duty. He has also appeared in numerous films, including Wyatt Earp (1994), The Postman (1997), The Patriot (2000), and Forgetting Sarah Marshall (2008).

Fox was previously married to director and actress Alison Eastwood from 1999 to 2000 and is married to Jaren Bokzan since 2017.