Treasure Island in Outer Space is a 1987 science fiction Italian and German television miniseries directed by Antonio Margheriti. It is based on the novel Treasure Island by Robert Louis Stevenson, setting the story in space on the year 2300. The series was produced by RAI Radiotelevisione Italiana in co-production with West Germany and France, and directed by Anthony M. Dawson. It is the biggest sci-fi production of Italian television. The miniseries of 5 episodes of 100 min was originally aired in Italy from November 19, 1987 on RAI Due channel. It was also adapted as a 120 min film. The miniseries is also known as Space Island (UK and Norway, USA on VHS) and Der Schatz im All (Germany).

In 1925, Desmond Jordan, an American archaeologist, tries to find the mysterious Speaking Mountain that is supposed to be in the middle of the Sahara desert, where he meets a bunch of deserters from the French Foreign Legion, who are pursued by the ruthless Lieutenant Ryker.