Daryl John Harper, (born 23 October 1951) is an Australian cricket umpire, who was a Test umpire between 1998 and 2011. He was a member of the Elite Panel of ICC Umpires from 2002 until 2011 when the ICC announced that Harper was being stood down at the termination of his contract in July 2011. In June 2011, following criticism from India during the India-West Indies Test series Harper retired from umpiring.