| Sheldon L. Rittmer | |
| State Senate: | Iowa |
| District: | 19th |
| Term Start: | January 14, 1991 |
| Term End: | January 12, 2003 |
| Predecessor: | Norman Goodwin |
| Successor: | Chuck Larson |
| Birth Name: | Sheldon Lowell Rittmer |
| Birth Date: | 5 September 1928 |
| Birth Place: | Clinton County, Iowa, United States |
| Death Place: | Bettendorf, Iowa, United States |
| Party: | Republican |
| Occupation: | farmer |
Sheldon Lowell Rittmer (September 5, 1928 – November 21, 2015) was an American politician in the state of Iowa.
Rittmer was born in Clinton County, Iowa. He is a farmer. He served in the Iowa State Senate from 1991 to 2003, as a Republican.[1] He died in 2015 in Bettendorf, Iowa from a Zenker's diverticulum.[2]