O'Malley

O'Malley may refer to:


 * O'Malley (surname), a surname (including a list of people with the name)
 * O'Malley, Australian Capital Territory, a suburb of Canberra
 * US FWS Henry O'Malley, a research vessel in commission in the United States Fish and Wildlife Service from 1949 to 1951
 * Ó Máille clan or Kings of Umaill, an Irish clan name anglicized as O'Malley