Citizenship and the posthuman have not been often theorized together. In this paper, I want to think about their coalition both as a new episode in the efforts of politics for citizenship, including knowledge politics, and as a source of rebalancing power against governmental and corporate interests in citizenship politics. Here, I seek to address two questions: (1) What is posthuman citizenship? (2) What does posthuman citizenship bring to analysis of intersectional, complex, and multi-layered struggles of citizenship? Section I of the article addresses possible conceptual connections between citizenship and posthumanism at the posthuman political system level. Section II concentrates on a posthuman genealogy of citizenship to show why posthuman citizenship is a much-needed ontopolitical praxis. Section III details the main principles of posthuman citizenship with respect to mediation of rights, political agency, and political responsibility. The paper contributes to the understanding of politics of/for citizenship with two concepts: augmented political responsibility and posthuman deeds.