Diane Larsen-Freeman (born 1946) is an American linguist.
She is currently a Professor Emerita in Education and in Linguistics at the University of Michigan in Ann Arbor, Michigan.
An applied linguist, known for her work in second language acquisition, English as a second or foreign language, language teaching methods, teacher education, and English grammar, she is renowned for her work on the complex/dynamic systems approach to second language development.