National humiliation is the humiliation felt by individuals who identify with the state (or nation) in response to an international event. Humiliation of this variety is often used, by both politicians and scholars in international relations, to explain a range of international conflicts (e.g., Chinese antagonism towards the West, the U.S response to 9/11, the Russian invasion of Ukraine etc.). In this paper, I explore the epistemic harms that result from national humiliation. First, I argue what is most relevant within the epistemic domain is not humiliation, the emotion, but humiliation narratives, which are used as discursive mechanisms to justify conflict. Second, I argue such narratives impact in-groups mobilised by populist rhetoric, as well out-groups marginalised by them. I conclude by suggesting some possible ways to mitigate these harms and foster epistemic resilience across societal divides.