John Duer Irving (August 18, 1874 – July 20, 1918) was an American geologist. He was born in Madison, Wisconsin. He graduated from Columbia University in 1896 and 1899. He was a member of the 11th Engineers, U.S. Army during World War I and died in France on July 20 or 26, 1918, of pneumonia. He was considered one of the foremost representatives of applied geology in the United States. He was also the managing editor of the journal Economic Geology from 1905 until his death. His father, Roland Duer Irving, was also a noted geologist.