Massachusetts House of Representatives' 5th Norfolk district in the United States is one of 160 legislative districts included in the lower house of the Massachusetts General Court. It covers part of Norfolk County. Democrat Mark Cusack of Braintree has represented the district since 2011.

Massachusetts Senate's Norfolk and Plymouth district in the United States is one of 40 legislative districts of the Massachusetts Senate. It covers 18.9% of Norfolk County and 6.8% of Plymouth County population. Democrat John Keenan of Quincy has represented the district since 2011.