Johnson County War is a 2002 American Western television miniseries. The script was written by Larry McMurtry and Diana Ossana and was about two fictitious families at the time of the Johnson County War (which had formed the backdrop to the film Heaven's Gate).

Filming started in Calgary, Canada, on 12 March 2001 and went until May. Filming took place in Kananasikis Country. The budget was estimated between $10–20 million Canadian.

McMurtry later wrote, "the film had its moments but very few of the actors had theirs — mainly the star, Tom Berenger, who insisted on singing as he was being murdered. We tried to discourage him but he persuaded us and I suspect now that he was right: absurdity is better than nothing, in the movies."