Logan's Run is an American science fiction television series, a spin-off from the 1976 film of the same name. The series starred Gregory Harrison as Logan 5 (the title character), Heather Menzies as Jessica 6, and Randy Powell as Francis 7. This series was aired on CBS from September 16, 1977, to February 6, 1978.

The series maintains the basic premise and visual style of the film in that Logan and Jessica have escaped from the "City of Domes" so that they will not have to die upon reaching the age of 30. The series differs from the plot of the movie in various ways, and depicts Logan and Jessica on the run in each episode in various locations on future Earth as they search for the mythical place known as "Sanctuary". Logan and Jessica are also assisted in each episode by an android called REM (acronym for Reclective - meaning self-programming, problem-solving - Entity Mobile), a character created for the series and played by Donald Moffat.

The series lasted only 14 episodes before it was cancelled due to its low rating. Three additional episodes were filmed but never aired.