Brier is a city in Snohomish County, Washington, United States. It is bordered by Mountlake Terrace to the west, Lynnwood to the north, Bothell to the east, and the King County line to the south. The population was 6,087 at the 2010 census.
Brier was officially incorporated on February 11, 1965.
Brier is located at 47°47′24″N 122°16′23″W / 47.79°N 122.27306°W / 47.79; -122.27306 (47.790019, -122.273068).