Ira Burr Brunson (November 5, 1815 – August 21, 1883) was an American pioneer, jurist, and territorial legislator.
Born in Fowler, Ohio, he settled in Prairie du Chien, Wisconsin Territory in 1836.
He served in different offices including sheriff of Crawford County, Wisconsin and Clerk of the Crawford County Wisconsin Circuit Court.
His father was Alfred Brunson, who also served in the Wisconsin Territorial Legislature.
Brunson died in Prairie du Chien, Wisconsin.