The Sea Ghost is a 1931 American pre-Code film directed by William Nigh and starring Alan Hale, Clarence Wilson, Claud Allister and Laura La Plante.

Navy Lieutenant Greg Winters (Alan Hale) is found guilty by a court-martial for pausing briefly to prepare to rescue survivors of the Alatania, a torpedoed ship, rather than attacking immediately the submarine responsible.

In 1925 New Orleans, lawyer Henry Sykes (Clarence Wilson) hires now civilian Captain Winters for a salvage job on behalf of Evelyn Inchcape (Laura La Plante).

Meanwhile, Winters, accompanied by his friend, ineffectual upper class lawyer Percy Atwater (Claud Allister), boards the ship and subdues the crew.

Just as Winters is about to choke the life out of his hated foe, Inchcape shows him a letter in which Ludwig's sweetheart informs him that she will be sailing on the Alatania.