Costelloe

Costelloe may refer to:


 * Casla, English name Costelloe, a village in western County Galway, Ireland

People

 * John Costelloe (politician) (born c. 1900), Irish politician, member of Seanad Éireann from 1963 to 1965
 * John Costelloe (actor) (1961–2008), American actor
 * Noel Costelloe (fl. 2011), Irish hurling player
 * Paul Costelloe (born 1945), Irish fashion designer
 * Timothy Costelloe (been 1954), Australian metropolitan bishop