Antarctica is one of the four global commons, which are area and resources beyond national jurisdiction. As there is no permanent human population in Antarctica, more-than-humans are the only residents of the region. My research aims to provide a critical ecocentric study of Antarctic law and governance drawing on the rights of nature and multispecies justice discourses and contribute to the legal debate around the exploitation of global commons in the larger context of environmental change. Based on posthuman and decolonial theories, it deconstructs and challenges the very notion of global commons.