Patrick Costello

Patrick or Pat Costello may refer to:
 * Pat Costello (1929–2014), American rower
 * 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
 * Patrick Costello (stained glass), English stained glass craftsman working with Thomas Denny (artist)