| John Slattery | |
| Birth Date: | 5 April 1958 |
| Birth Place: | Beverly, Massachusetts |
| Party: | Democrat |
| Spouse: | Nancy Slattery |
| Alma Mater: | Suffolk University Suffolk University Law School |
| Office: | Member of the from the 12th Essex district |
| Term Start: | 1995 |
| Term End: | 2003 |
| Predecessor: | Thomas Walsh |
| Successor: | Joyce Spiliotis |
| Office1: | Member of the Peabody City Council |
| Term Start1: | 1993 |
| Term End1: | 1994 |
John P. Slattery (born April 5, 1958) is an American former politician who represented the 12th Essex district in the Massachusetts House of Representatives from 1995 to 2003 and was a Peabody, Massachusetts City Counclior from 1993 to 1994.[1]
While originally a staunch supporter of the death penalty, Slattery later came to oppose it, with his vote against a 1997 bill to reinstate the practice in Massachusetts causing the resolution to fail.[2]
Slattery ran for lieutenant governor of Massachusetts in 2002, but lost the Democratic nomination to Chris Gabrieli.[3] He was a candidate for mayor of Peabody in 2005, but lost to incumbent Michael Bonfanti.[4] In 2012, John announced his plans to run for Massachusetts State Senate.[5] He lost the Democratic primary to Joan Lovely, then a member of the Salem city council.[6]