Daniel Isom Sultan (December 9, 1885 – January 14, 1947) was an American general. Sultan was born in Oxford, Mississippi, and graduated from the United States Military Academy in 1907. He entered the United States Army Corps of Engineers and rose through the ranks, teaching engineering at West Point from 1912 to 1916, before travelling to the Philippines. He oversaw construction of fortifications on various islands, and eventually was in charge of all US Army fortification work in the Philippines. He then served on the War Department General Staff and the general staff of the American Expeditionary Forces until 1922. Sultan led the Nicaragua Canal Survey and commanded American troops in the country from 1929 to 1931, when he returned to the United States and wrote a report on the canal.