Equinox is a British science and documentary programme. The series ran from 31 July 1986 to 21 December 2006, originally airing on a weekly basis on Channel 4.

The number of films per series fell over the years, from eighteen one-hour films a year originally to twelve by the late 1990s. The last regular series was shown on 21 December 2006, with twelve films. One-off films have occasionally been aired under the title "Equinox Special" (e.g. the 90-minute Secrets of the Super Psychics first transmitted in 1997).