The Rainbow is a 1989 British drama film co-written and directed by Ken Russell and adapted from the D. H. Lawrence novel The Rainbow (1915). Sammi Davis stars as Ursula, a sheltered young pupil, then schoolteacher, who is taken under the wing (sexually and otherwise) by the more sophisticated Winifred (Amanda Donohoe).

Russell's film was a companion to his 1969 adaption of Lawrence's second novel about the Brangwen sisters Women in Love (1920). Glenda Jackson appears as the mother of the character she played in Women in Love (1969). Leonard Maltin commented that "Many beautiful and striking moments don't quite gel, but still worth watching". The film was entered into the 16th Moscow International Film Festival.