Maria Amaral may refer to:
- Maria Amaral (sport shooter) (born 1931), Brazilian sports shooter
- Maria Adelaide Amaral (born 1942), Portuguese Brazilian playwright, screenwriter, and novelist
- Maria Lúcia Amaral (born 1957), Portuguese lawyer, university professor, politician and judge
- Maria do Carmo Estanislau do Amaral (born 1959), Brazilian botanist, biologist, curator, and academic