| Peter J. Larkin | |
| Birth Date: | 23 December 1953 |
| Birth Place: | Pittsfield, Massachusetts |
| Occupation: | Wholesale Beverage Distributor |
| Residence: | Pittsfield, Massachusetts |
| Party: | Democratic |
| Alma Mater: | St. Bonaventure University |
| Member of the Massachusetts House of Representatives from the 3rd Berkshire District | |
| Term Start: | 1991 |
| Term End: | 2005 |
| Predecessor: | Robert Jakubowicz |
| Successor: | Christopher Speranzo |
Peter J. Larkin (born December 23, 1953, in Pittsfield, Massachusetts[1]) is an American politician who represented the 3rd Berkshire District in the Massachusetts House of Representatives from 1991 to 2005.