David Callaghan (disambiguation)

David or Dave 'Callahan, Callaghan, or O'Callaghan' may refer to:

David Callahan, founding editor of Inside Philanthropy, a digital media site
David Callahan, fictional character in the Australian soap opera
Dave Callaghan, South African cricketer
Dave O'Callaghan, Irish rugby union player
David O'Callaghan , Irish hurler and former Gaelic footballer for Dublin
David O'Callaghan