Although ‘resources’ and ‘nationalism’ are core analytical categories in geography, the concept of ‘resource nationalism’ has received little attention in the discipline. We address this lacuna by reviewing relevant literature across the social sciences, and tracing key concepts and scalar frames to advance a critical approach to resource nationalism. In contrast to realist approaches, we understand it as a political discourse mobilized by a wide range of actors. Highlighting its multiple, co-existing, and often contradictory narratives about places, subjects, identities, and materialities, we illustrate the relevance of this critical framework with brief examples from Kazakhstan, Bolivia, and the USA.