On July 7, 2017, 122 countries voted in favor of the adoption of the Treaty on the Prohibition of Nuclear Weapons (TPNW). Yet, it did not enter into force until the 22nd of January, 2021, when the treaty reached the mark of 50 ratifications. This date represents a remarkable moment in the nuclear era, and hopefully, it will mark the beginning of a peaceful and inclusive chapter in history. The TPNW is not only the outcome of diplomatic efforts; instead, the involvement of the civil society was pivotal for the success of the process (Acheson, 2019). Feminist coalitions were determinant to the nuclear disarmament initiative, and their permanence in this discussion table is crucial to the advancement of nuclear ban values. It is essential to state that there is no single feminist approach to nuclear armament; this piece does not aim to adopt an essentialist position. Yet, this article aims to unfold the feminist contribution to the TPNW, drawing on gender approaches to international security, and suggesting a path to follow.