Brigadier General Bonner Frank Fellers (February 7, 1896 – October 7, 1973) was a United States Army officer who served during World War II as a military attaché and director of psychological warfare. He is notable as the military attaché in Egypt whose extensive transmissions of detailed British tactical information were unknowingly intercepted by Axis agents and passed to Nazi German Generalfeldmarschall Erwin Rommel for over six months, which contributed to disastrous British defeats at Gazala and Tobruk in June 1942.