Forbidden Island or Forbidden Isle may refer to:

Arts and entertainment

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Islands

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  • Forbidden Island, Saipan, Northern Mariana Islands, United States
  • Kharg Island, Iran, often referred to as "the Forbidden Island"
  • Niihau, the westernmost island in Hawaii, United States, nicknamed "the Forbidden Isle"
  • Malibu Islet, at the entrance of Princess Louisa Inlet, in British Columbia, Canada, also known as Forbidden Island