Heather Mary Mitchell OBE AM, nee Hutchieson (25 September 1917 – 12 November 1999) was an Australian farmer, community leader and conservationist.
From 1986 to 1989, she served as the first female president of the Victorian Farmers Federation, and played a central role in the establishment of Landcare.
She married Lester Clarence Mitchell, a pharmacist, in 1941 and moved to Hopetoun, where the couple ran a pharmacy and a number of farms.
She was elected the organisation's first female president in 1986, and in that year she and Joan Kirner were the inaugural chairs of Landcare Victoria.
Her service to the Red Cross was recognised in 1995 with the International Order of St John, and in 1997 she became the patron of the Public Land Council.