Irasburg is a town in Orleans County, Vermont, United States. Irasburg was established in 1781 when the land was granted to Ira Allen, Roger Enos, Jerusha Enos, Jerusha Enos, Jr., Roger Enos, Jr. and others by the Vermont General Assembly. Ira Allen later obtained the rights of the other proprietors, and he deeded the town to Jerusha Enos, Jr. as a wedding gift.

Ira Allen was one of the founders of the U.S. state of Vermont and a leader of the Green Mountain Boys during the American colonial period. He was the younger brother of Ethan Allen.