| John R. Buckley | |
| Birth Date: | 1 January 1932 |
| Birth Place: | Rockland, Massachusetts |
| Death Date: | [1] |
| Death Place: | Abington, Massachusetts |
| Residence: | Abington, Massachusetts |
| Party: | Democrat |
| Alma Mater: | Harvard College |
| Title1: | Massachusetts Secretary of Administration and Finance |
| Term Start1: | 1975 |
| Term End1: | 1979 |
| Governor1: | Michael Dukakis |
| Predecessor1: | David Marchand |
| Successor1: | Edward Hanley |
| Title2: | Member of the Massachusetts House of Representatives from the 3rd Plymouth District |
| Term Start2: | 1965 |
| Term End2: | 1975 |
| Predecessor2: | Alfred Shrigley |
| Successor2: | George Chester Young |
John R. "Jack" Buckley (January 1, 1932 – January 21, 2020) was an American politician who served as Secretary of Administration and Finance of Massachusetts from 1975 to 1979, member of the Massachusetts House of Representatives from 1965 to 1975, and Abington, Massachusetts Town Treasurer from 1961 to 1965.[2] He was a candidate for state Democratic party chairman in 1971, but lost to State Treasurer Robert Q. Crane.
Buckley's father, Thomas H. Buckley, served as Massachusetts State Auditor from 1935 to 1939 and was the state's first Commissioner of Administration and Finance.[3] His son, John R. Buckley, Jr., is the Plymouth County, Massachusetts Register of Deeds.[4]