David Story Caldwell (April 27, 1891 – January 6, 1953) was an American runner. He competed in the 800 m at the 1912 Summer Olympics and finished in fourth place. In 1915 Caldwell won the AAU indoor 1,000 yard title; outdoors he was second over 880 yd in 1912 and third in 1915. After graduating from University of Massachusetts Caldwell became a farmer in northeastern Massachusetts. He also served as the postmaster in his native South Byfield and a volunteer athletics coach at the nearby Governor Dummer Academy.