Bonner Frank Fellers (February 7, 1896 – October 7, 1973) was a US Army officer who served during World War II as 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 intercepted by Axis agents and passed to German Field Marshal Erwin Rommel for over six months, which contributed to disastrous British defeats at Gazala and Tobruk in June 1942. He was considered a protégé of General Douglas MacArthur.