Arago was the name of a number of ships and may refer to:
- Arago (1854), a schooner in service in the United States Coast Survey/United States Coast and Geodetic Survey from 1854 to 1861 and from 1866 to 1881 as USCS/USC&GS Arago
- SS Arago (1855), a steamer chartered by the Union Army during the American Civil War
- Arago (1871), a steamer in service in the U.S. Coast Survey/U.S. Coast and Geodetic Survey from 1871 to 1890 as USCS/USC&GS Arago
- Arago (1885), a freighter built by the Union Iron Works at San Francisco's Pier 70 for the Oregon Coal Company