The ascendance of White Christian nationalism has profound implications for democracy and public institutions in the United States, including public education. This article explains the core beliefs and features of White Christian nationalism as a contemporary religiopolitical movement that seeks to fuse Christianity with civic life; delineates how and why it matters for educational research; and identifies how education scholars might begin to address White Christian nationalism, particularly by investigating how it can be unlearned. We argue that learning about White Christian nationalism can help educational stakeholders better understand current educational battles, such as banning books and discussion of critical race theory, and contextualize a wide range of pressing problems facing US education, especially problems involving educational justice and equity.