John Daniel Foldberg, a 1946 graduate of Sunset High School in Dallas, Texas, was an American military officer and football player. He played as an end for the Army Cadets at the United States Military Academy. Army head coach Earl Blaik rated him the best end he had ever coached. He was selected in the 1951 NFL Draft, but pursued a 27-year military career. Foldberg served as an infantry officer in the Korean and Vietnam Wars.