| Lyndell Petersen | |
| Office: | Member of the South Dakota Senate |
| Term: | 1977–1994 |
| Birth Date: | 4 July 1931 |
| Birth Place: | Hay Springs, Nebraska |
| Party: | Republican |
| Spouse: | Jill Louise Wendling |
| Occupation: | rancher |
| Residence: | Rapid City, South Dakota |
| Children: | two |
| Alma Mater: | South Dakota State University |
Lyndell Hans Petersen (born July 4, 1931) is an American former politician. He served in the South Dakota Senate from 1977 to 1994.[1] [2]