Vesturbyggð is a municipality located in the Westfjords in Iceland.
As of January 1, 2011, it had a population of 890.
In Vesturbyggð there is the town Patreksfjörður with 627 inhabitants, Bíldudalur with 166 inhabitants and Krossholt with 19 inhabitants.
The municipality is served by Patreksfjörður Airport and Bíldudalur Airport.
- ^ Political division
- ^ Mainly statistical division
Coordinates: 65°35′53″N 24°00′07″W / 65.598°N 24.002°W