Makarena Diana Dudley, also known as Margaret Dudley, is a New Zealand clinical psychologist, neuropsychologist and academic, specialising in neuropsychology, dementia and Māori health psychology research. She is currently one of the co-directors of the clinical psychology programme at the University of Auckland. In 2016, Dudley became the first permanent Māori clinical psychology lecturer employed at the University of Auckland. Dudley's iwi include Te Rarawa, Te Aupōuri and Ngāti Kahu.