Adelia Ashby "Dee" Duponte (born Adelia Ashby; c. 1908/1909 – April 22, 1971) was an American politician. She was a Democratic Representative and later Senator for Maui in the Hawaii Territorial Legislature. Her term as Territorial Senator ended in 1957. In 1958, she attempted suicide in her Waikiki apartment and was subsequently hospitalized until her death in 1971.