Massachusetts House of Representatives' 5th Barnstable district in the United States is one of 160 legislative districts included in the lower house of the Massachusetts General Court. It covers parts of Barnstable County and Plymouth County. Since 2021, Steven Xiarhos of the Republican Party has represented the district.
The district includes the following localities:
The current district geographic boundary overlaps with those of the Massachusetts Senate's Cape and Islands and Plymouth and Barnstable districts.