"The Man That Was Used Up", sometimes subtitled "A Tale of the Late Bugaboo and Kickapoo Campaign", is a short story and satire by Edgar Allan Poe. It was first published in August 1839 in Burton's Gentleman's Magazine.

The story follows an unnamed narrator who seeks out the famous war hero John A. B. C. Smith. He becomes suspicious that Smith has some deep secret when others refuse to describe him, instead remarking only on the latest advancements in technology. When he finally meets Smith, the man must first be assembled piece by piece. It is likely that in this satire Poe is actually referring to General Winfield Scott, veteran of the War of 1812, the Mexican–American War, and the American Civil War. Additionally, some scholars suggest that Poe is questioning the strong male identity as well as how humanity falls as machines become more advanced.

An unnamed narrator meets the famous Brevet Brigadier General John A. B. C. Smith, "one of the most remarkable men of the age" and a hero of "the late tremendous swamp-fight, away down South, with the Bugaboo and Kickapoo Indians." Smith is an impressive physical specimen at six feet tall with flowing black hair, "large and lustrous" eyes, powerful-looking shoulders, and other essentially perfect attributes. He is also known for his great speaking ability, often boasting of his triumphs and about the advancements of the age.