The Hemingway–Boulders Wilderness is a protected area in Sawtooth National Recreation Area, part of Sawtooth National Forest in Blaine and Custer counties, Idaho, United States. The wilderness covers part of the Boulder Mountains and directly adjoins the Jim McClure–Jerry Peak Wilderness on its northeast side and is south of the White Clouds Wilderness, which it does not directly adjoin. It is named for the Boulder Mountains and Ernest Hemingway, who was a resident of nearby Ketchum. The area was added to the National Wilderness Preservation System on August 7, 2015 with the passage of the Sawtooth National Recreation Area and Jerry Peak Wilderness Additions Act, which was sponsored by Representative Mike Simpson and passed Congress without objection before being signed into law by President Barack Obama.