Mary Cameron may refer to:
Mary Cameron (painter) (1865–1921), Scottish portrait painter Mary Gilmore (1865–1962), née Mary Cameron, Australian socialist poet and journalist Mary Cameron (mother of David Cameron) (1934–2025), mother of former Prime Minister of the United Kingdom Mary Cameron (entomologist), British professor of medical entomology Mary Lovett Cameron (1848–1930), British artist and writer of fiction and travel books