What are the possibilities for multispecies justice? How do social justice struggles intersect with the lives of animals, plants, and other creatures? Leading thinkers in anthropology, geography, philosophy, speculative fiction, poetry, and contemporary art answer these questions from diverse grounded locations. In America, Indigenous peoples and prisoners are decolonizing multispecies relations in unceded territory and carceral landscapes. Small justices are emerging in Tanzanian markets, near banana plantations in the Philippines, and in abandoned buildings of Azerbaijan as people navigate relations with feral dogs, weeds, rats, and pesticides. Conflicts over rights of nature are intensifying in Colombia's Amazon. Specters of justice are emerging in India, while children in Micronesia memorialize extinct bird species. Engaging with ideas about environmental justice, restorative justice, and other species of justice, The Promise of Multispecies Justice holds open the possibility of flourishing in multispecies worlds, present and to come.