| Elmer C. Peterson | |
| State: | Wisconsin |
| State Senate: | Wisconsin |
| District: | 12th |
| Term Start: | 1943 |
| Term End: | 1947 |
| Preceded: | Philip Nelson |
| Succeeded: | Clifford Krueger |
| Party: | Progressive |
| Birth Date: | 30 November 1891 |
| Restingplace: | Greenwood Cemetery, |
| Allegiance: | United States |
| Branch: | United States Army |
| Rank: | Private |
| Battles: | World War I |
Elmer Peterson (November 30, 1891 – June 17, 1978) was an American farmer and politician.
Born in Martin County, Minnesota, Peterson was raised in Rockford, Illinois and attended Brown's Business College in Rockford. He served in the United States Army during World War I. He lived in Superior, Wisconsin and was a farmer.
He served as the town clerk, on the school board, and on the Douglas County, Wisconsin Board of Supervisors. Peterson served in the Wisconsin State Assembly from 1933 to 1941. He then served in the Wisconsin Senate, representing the 11th District from 1943 to 1947. He was a member of the Wisconsin Progressive Party.[1] [2]