| Bob Bergren | |
| Office: | 50th Speaker of the Montana House of Representatives |
| Term Start: | 2009 |
| Term End: | 2011 |
| Preceded: | Scott Sales |
| Succeeded: | Mike Milburn |
| Office2: | Member of the Montana House of Representatives |
| Term Start2: | 2003 |
| Term End2: | 2011 |
| Preceded2: | Merlin Worley |
| Succeeded2: | Kristin Hansen |
| Constituency2: | 90th district (2003–2005) 33rd district (2005–2011) |
| Party: | Democratic |
| Birth Name: | Robert Jerry Bergren |
| Alma Mater: | Montana State University |
| Occupation: | Farmer, business owner |
| Spouse: | Julie Bergren |
| Residence: | Havre, Montana, U.S. |
Robert Jerry Bergren Sr. is a Democratic Party member of the Montana House of Representatives, representing District 33 since 2002. He previously served as Speaker of the Montana House of Representatives.