| Don Ryan | |
| State Senate: | Montana |
| State: | Montana |
| District: | 10th |
| Term Start: | 2001 |
| Term End: | 2009 |
| Succeeded: | Bradley Maxon Hamlett |
| Party: | Democratic Party |
| Birth Date: | 21 December 1951 |
| Birth Place: | Great Falls, Montana |
| Alma Mater: | University of Montana |
| Occupation: | educator, daycare owner |
| Spouse: | Terri |
| Residence: | Great Falls, Montana |
Don Ryan was a Democratic Party member of the Montana Senate, representing District 10 since 2000.