Look up Kilroy in Wiktionary, the free dictionary.
Kilroy may refer to:
Dennis DeYoung, lead vocalist in the band Styx, also known by the nickname "Kilroy",
Kilroy's College, a distance education school in Ireland,
Kilroy (TV series), a BBC day time chat show hosted by Robert Kilroy-Silk,
Kilroy International A/S, a European company specializing in travel-related youth products