| Galen Hollenbaugh | |
| State House: | Montana |
| State: | Montana |
| District: | 81st |
| Term Start: | December 2006 |
| Term End: | January 5, 2015 |
| Preceded: | Christine Kaufmann |
| Succeeded: | Janet Ellis |
| Party: | Democratic Party |
| Birth Place: | Missoula, Montana |
| Alma Mater: | University of Montana |
| Occupation: | campaign manager and chief of staff |
| Residence: | Helena, Montana |
Galen Hollenbaugh is a Democratic Party member of the Montana House of Representatives, representing District 81 since his appointment in December 2006. He was appointed by the Lewis and Clark County Commission after the resignation of the incumbent, Christine Kaufmann. Kaufmann had resigned her House seat on being appointed to the Senate to replace Ken Toole, who had resigned from the Senate following his election to the Montana Public Service Commission.