Brevort Township is a civil township of Mackinac County in the U.S. state of Michigan. As of the 2010 census, the township population was 594. The township was named after Henry Brevort (or Brevoort), a surveyor assigned to subdivide the area in 1845. Most of the township land is within the eastern portion of the Hiawatha National Forest. The township includes part of the Mackinac Wilderness.