Hannah-Mary Dee is a British cognitive scientist and computer scientist specialising in computer vision, with specialisms in plant science, navigation, art, and medical imaging. In 2014, she was one of 30 women identified by the British Computer Society in the "BCS Women in IT Campaign. Dee has organised many events for women in computing and for broader groups with a women-friendly stance, including an android programming family fun day (materials available in Welsh and in English).