ABSTRACT COVID-19 and the prospect of a sixth mass extinction, among other crises, have underscored the urgency of recognizing humans' ethical and ecological entanglements with the more-than-human world. In light of these entanglements, this article brings together theories of occupational justice with those of animal rights in order to stimulate further discussion toward the development of a multispecies theory of occupational justice. First, a precedent and basis for nonhuman occupational rights is established in Martha Nussbaum’s capabilities approach. Second, Sue Donaldson and Will Kymlicka’s political theory of animal rights is invoked as a lens through which to understand how various types of nonhuman animals are differentially at risk for experiencing four occupational injustices: occupational deprivation, alienation, displacement, and apartheid. The article concludes that a commitment to multispecies occupational justice changes how science is practiced. Implications for occupational science and adjacent design sciences are explored, as well as directions for future research and political work.