Long John Silver, also known as Long John Silver's Return to Treasure Island, is a 1954 American-Australian adventure film about the eponymous pirate Long John Silver, with Robert Newton repeating his starring role from Walt Disney's 1950 feature Treasure Island. Newton's billing in the opening credits states, "Robert Newton as Robert Louis Stevenson's immortal", followed by the title Long John Silver, presenting Robert Louis Stevenson's immortal Long John Silver as another of the film's alternate titles.

Long John Silver is a fictional character and the main antagonist in the novel Treasure Island (1883) by Robert Louis Stevenson. The most colourful and complex character in the book, he continues to appear in popular culture. His missing leg and parrot, in particular, have greatly contributed to the image of the pirate in popular culture.