Eben Cedron Smeed (December 8, 1830 - August 24, 1892) was an American civil engineer who was best known for his work on railroads, particularly the United States Military Railroad (USMRR) in supporting Sherman's Atlanta and Savannah campaigns working first under General Herman Haupt and then Colonel William Wierman Wright. Smeed typified the successful, self-made civil engineer in the 19th century.