Pirates of the Caribbean: On Stranger Tides is an upcoming 2011 3D fantasy action-adventure film. It is the fourth film in the Pirates of the Caribbean series, distributed by Walt Disney Pictures, produced by Jerry Bruckheimer and stars Johnny Depp, Penelope Cruz, Ian McShane, Geoffrey Rush and Kevin McNally. The film was first announced in September 2008, and principal photography started in June 2010. Unlike previous films, which were shot primarily on location in the Caribbean, On Stranger Tides had most of its production in Hawaii.

The plot draws inspiration from the novel On Stranger Tides by Tim Powers. The plot features Captain Jack Sparrow, again played by Johnny Depp, searching for the Fountain of Youth and confronting the pirate Blackbeard.

The film is set to be released on May 20, 2011 in Disney Digital 3-D and IMAX 3D, as well as in traditional two-dimensional and IMAX formats. It will be the first Pirates of the Caribbean film to be released in 3D.