| Donald Naddy | |
| State House: | South Dakota |
| District: | 34th |
| Term Start: | 1959 |
| Term End: | 1966 |
| Birth Date: | 12 January 1917 |
| Birth Place: | Kidder, South Dakota |
| Death Date: | February 2017 (aged 100) |
| Death Place: | Port Angeles, Washington |
| Party: | Democratic |
| Occupation: | teacher |
| Alma Mater: | Northern State University |
Donald William Naddy (January 12, 1917 – February 2017) was an American politician in the state of South Dakota who was a member of the South Dakota House of Representatives from 1959 to 1966.[1] [2] Naddy was an alumnus of the Northern State University and a teacher.[3] He also was a town clerk of Britton, South Dakota. He died aged 100 in 2017.