| William Constantino Jr. | |
| Birth Date: | 27 May 1944 |
| Birth Place: | Clinton, Massachusetts |
| Nationality: | American |
| Occupation: | Attorney |
| Residence: | Clinton, Massachusetts |
| Party: | Republican |
| Alma Mater: | College of the Holy Cross Fitchburg State College Suffolk University Law School |
| Member of the Massachusetts House of Representatives from the 12th Worcester District | |
| Term Start: | 1983 |
| Term End: | 1995 |
| Predecessor: | Thomas F. Fallon |
| Successor: | Harold Naughton Jr. |
| Relations: | William P. Constantino (father) |
William Paul Constantino Jr. is an American lawyer and politician who represented the 12th Worcester District in the Massachusetts House of Representatives from 1983 to 1995.[1] [2] His father, William P. Constantino, also served in that house.[2] His nephew, Mike Bonin, is a former Los Angeles City Councilor.[3]