UnidosUS, formerly National Council of La Raza (NCLR), is the United States's largest Latino nonprofit advocacy organization. It advocates in favor of progressive public policy changes including immigration reform, a path to citizenship for migrants, and reduced deportations.

The Spanish expression la Raza has historically been used to refer to the mixed-race populations, considered as an ethnic or racial unit historically deriving from the Spanish Empire, and the process of racial intermixing during the Spanish colonization of the Americas with the indigenous populations of the Americas.