This article suggests that the arts and humanities are in the midst of an interdisciplinary turn. This turn is a reaction to two problems: the transformation of universities in the twenty-first century and the challenges posed by postmodernism. The interdisciplinary turn, as identified here, is toward critical thinking in teaching and learning and toward critical interdisciplinarity in humanistic inquiry. Exposing the problems and highlighting the opportunities can help scholars, artists, and educators consciously apply these approaches and intentionally plan for interdisciplinarity, with the goals of fostering student learning and advancing scholarship. By understanding what is happening in this turn, scholars and educators in the arts and humanities can better lead interdisciplinarity into the future.