The Rainbow Trail is a lost[1] 1918 American silent Western film directed by Frank Lloyd.

[2] The picture was an adaptation of Zane Grey's 1915 novel of the same name.

It was a sequel to the 1918 film Riders of the Purple Sage, which also starred William Farnum as Lassiter.

The Rainbow Trail was remade in 1925 and, with sound, in 1932.

This article related to an American film of the 1910s (which would be a silent film) in the Western genre is a stub.