Helen Huss Parkhurst (January 3, 1887 – June 1, 1973) was an American educator, author, lecturer, the originator of the Dalton Plan and the founder of The Dalton School.
Born at Durand, Wisconsin, she graduated from Wisconsin State Teachers College in 1907, studied at the universities of Rome and Munich as well as with Maria Montessori and was awarded her M.A. in 1943 from Yale University.
She died in New Milford, Connecticut.