Analysing the nuclear weapons regime through both postcolonial and feminist frameworks demonstrates that the possession of nuclear weapons has incredibly important implications for the security agenda. While both postcolonial and feminist scholars have delved into the relationships between their respective disciplines and the dynamics of the nuclear weapons regime, gaps in the scholarship ensure that postcolonial feminist critiques of the regime are lacking. This article endeavours to combine postcolonial and feminist critiques to demonstrate how the nuclear weapons regime is underpinned by pertinent gendered and colonial assumptions. These assumptions ensure that certain states are prioritised over others; namely, the behaviour of nuclear weapons states is considered more legitimate than that of 'rogue states', their desire for nuclear weapons hinged upon racial, colonial and gendered assumptions of legitimacy. Closely analysing the gendered and colonial dynamics of the nuclear weapons regime sheds light upon how patriarchy and imperialism have shaped the security agenda in regard to nuclear weapons.Security matters in the way that it demonstrates the political world order and its power structures. Dominant security discourses are demonstrative of whose voices are taken seriously and whose issues are deemed most important in international politics. By examining nuclear weapons through a postcolonial feminist framework, one can shed light on these dominant narratives as colonial and gendered constructions of power. Starting with postcolonial arguments, this article will demonstrate how the nuclear weapons regime has been manipulated by powerful states, benefiting their interests while overlooking those of seemingly 'lesser states'. This colonial domination of nuclear weapons has significant implications for the wider security field as, arguably, the possession of nuclear weapons remains a prerequisite for superpower status. Following on from this, feminist arguments explored in this article will highlight the gendered link between nuclear weapons and global patriarchy. In regards to security, highly gendered discourses work to feminise 'Third World'