David Ross MacDonald (born January 27, 1965 in Vancouver, British Columbia, Canada) is a Canadian sailor. He began sailing at the age of 11.

Ross Macdonald is the main pseudonym that was used by the American-Canadian writer of crime fiction Kenneth Millar (; December 13, 1915 – July 11, 1983). He is best known for his series of hardboiled novels set in southern California and featuring private detective Lew Archer. Brought up in Ontario, he eventually settled in California, where he died in 1983.