A number of ships have been named Arcadia, including:
Merchant ships
, a passenger liner built by Harland and Wolff for P&O, in service 1888–1915
, a cargo ship built by Harland and Wolff for Hamburg America Line, in service 1897–1926 , a cargo ship in service with Hamburg America Line 1922–1934 (1929), a steamboat that operated in the state of Washington, United States , a passenger liner and cruise ship of P&O, in service 1954–1979 , a cruise ship in service under that name with P&O Cruises 1997–2003 , a cruise ship of P&O cruises, in service since 2005