| Robert R. Weber | |
| State House: | South Dakota |
| District: | 3rd |
| Term Start: | 1973 |
| Term End: | 2000 |
| Birth Date: | 19 November 1925 |
| Birth Place: | Watertown, South Dakota |
| Death Place: | Clear Lake, South Dakota |
| Party: | Republican |
| Spouse: | Shirley V. Roe (m. June 3, 1948) |
| Profession: | farmer |
| Children: | four |
Robert R. Weber (November 19, 1925 – September 24, 2021) was an American politician in the state of South Dakota. He was a member of the South Dakota House of Representatives from 1973 to 2000.[1] He was a farmer and former chairman of his local school board.[2] Weber died on September 24, 2021.[3]