Massachusetts House of Representatives' 3rd Barnstable district

Massachusetts House of Representatives' 3rd Barnstable 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 Barnstable County. Republican David Vieira of Falmouth has represented the district since 2011.

Towns represented
The district includes the following localities:
 * part of Bourne
 * part of Falmouth
 * Mashpee

The current district geographic boundary overlaps with those of the Massachusetts Senate's Cape and Islands and Plymouth and Barnstable districts.

Former locales
The district previously covered:
 * Chatham, circa 1872
 * Orleans, circa 1872

Representatives

 * Ira Mayo, circa 1858
 * Elijah Cobb, circa 1859
 * David Conwell, circa 1888
 * Jerome S. Smith, circa 1920
 * Richard E. Kendall, circa 1975
 * Thomas Cahir, circa 1998
 * Nancy Caffyn, 1999–2001
 * Matthew C. Patrick, 2001–2011
 * David T. Vieira, 2011-current