United States v. DuBay, 17 C.M.A. 147, 37 C.M.R 411 (C.M.A. 1967), was a United States case decided by the Court of Military Appeals that established procedure in courts-martial for holding hearings to determine issues raised collaterally which require findings of fact and conclusions of law. Such hearings are commonly referred to as "DuBay hearings", and the case is cited in the rules of the Court of Appeals for the Armed Forces.