Nancy M. Bonini (born 1959) is an American neuroscientist and geneticist, best known for pioneering the use of Drosophila as a model organism to study neurodegeneration of the human brain. Using the Drosophila model approach, Bonini's laboratory has identified genes and pathways that are important in the development and progression of neurodegenerative diseases such as Amyotrophic lateral sclerosis (ALS, also called Lou Gehrig's Disease), Alzheimer's disease, and Parkinson's disease, as well as aging, neural injury and regeneration, and response to environmental toxins.