Rainbow Coalition may refer different or related political concepts or movements in various parts of the world. In countries with parliamentary systems, it can refer to any coalition government composed of a coalition of several ideologically unrelated political parties united by opposition to one or more dominant parties. In the US, the "rainbow" concept has mainly referred to a diversity ethnicities and other demographic categories within a political organization or movement.
In the United States, the first rainbow coalition sought to bring together disadvantaged people from a broad spectrum of races and creeds, and voter mobilization was a primary goal in that effort.