| Robert N. Duxbury | |
| State House5: | South Dakota |
| District5: | 5th |
| Term5: | 1985–1998 |
| State Senate3: | South Dakota |
| District3: | 18th, 22nd |
| Term Start3: | 1981 |
| Term End3: | 1982 |
| Term Start4: | 1999 |
| Term End4: | 2004 |
| Birth Date: | 14 March 1934 |
| Birth Place: | Hand County, South Dakota |
| Death Place: | Wessington, South Dakota |
| Party: | Democratic |
| Spouse: | Rose Radcliffe |
| Profession: | Farmer |
| Residence: | Wessington, South Dakota |
| Children: | 5 |
Robert Neil Duxbury (March 14, 1934 – June 6, 2016) was an American politician in the state of South Dakota. He was a member of the South Dakota House of Representatives and South Dakota State Senate.[1] He was Minority Leader of the House from 1987 to 1994. A farmer and educator, Duxbury attended South Dakota State University and earned a Bachelor of Arts. He served as the South Dakota Secretary of Agriculture from 1973 to 1978.[2] [3] He died on June 16, 2016.[4]