Ross Oakley Armstrong Sr. (February 4, 1905 – January 3, 1990) was an American football and basketball player and coach. He served as the head football coach at Chadron State College in Chadron, Nebraska from 1938 to 1952.[1] Armstrong was also the head basketball coach at Chadron State from 1935 to 1950, tallying a mark of 157–76.
As a college athlete, Armstrong played football and basketball at the University of Iowa.[2]