Patrick or Pat Costello may refer to: Patrick Costello (Australian politician) (1824–1896), Australian businessman and politician Patrick Costello (musician), bass player and vocalist for Dillinger Four Patrick Costello (Irish politician) (born 1980), Irish Green Party TD Pat Costello (rower) (1929–2014), American rower Pat Costello (actor), American actor, producer and stunt double
See also Desmond Patrick Costello (1912–1964), New Zealand linguist, soldier and diplomat Victor Costello (Victor Carton Patrick Costello, born 1970), Irish rugby union player and Olympic shot putter