| R. Ray Peterson | |
| State Senate: | Wyoming |
| State: | Wyoming |
| District: | 19th |
| Term Start: | April 2005 |
| Term End: | January 7, 2019 |
| Preceded: | Laness Northrup |
| Succeeded: | R.J. Kost |
| Party: | Republican |
| Birth Date: | 3 May 1959 |
| Birth Place: | Lovell, Wyoming, U.S. |
| Residence: | Cowley, Wyoming, U.S. |
| Spouse: | Cresta |
| Children: | 3 |
R. Ray Peterson (born May 3, 1959) is a former Republican member of the Wyoming Senate, representing the 19th district[1] from 2005 to 2019. The 19th district includes Big Horn County and eastern Park County.