Poseidon (ship name)

Poseidon has been the name of a number of ships, both real and in fiction.

Real ships

 * SS Poseidon was 1968-1969 the name of a steam cargo ship built in 1941 for the British Government and originally named Empire Ballard.
 * ST Poseidon was 1973-1976 the name of a steam tug built in 1941 for the British Government and originally named Empire Fir.
 * HMS Poseidon was a Royal Navy Parthian-class submarine, launched in 1929 and sunk in 1931.
 * USS Poseidon was a US Navy Achelous class repair ship, built in 1944 and sold off in 1961.

In fiction

 * Poseidon, the subject of the 1969 novel The Poseidon Adventure as well as the films based on that novel: The Poseidon Adventure (1972), Beyond the Poseidon Adventure (1979), The Poseidon Adventure (2005), and Poseidon (2006).
 * USS Poseidon, a US Navy attack submarine in the 2005 film ''Phantom Below.