James Donald Mathieson Dobie (28 July 1927 – 25 November 1996) was an Australian politician. He was a member of the Liberal Party and served in the House of Representatives for over 25 years, representing the seats of Hughes (1966–1969) and Cook (1969–1972, 1975–1996). He was an assistant minister during the McMahon government (1971–1972). Prior to entering politics he worked for the Bank of New South Wales.