Despite its centrality to Catholicism and prominence in American life, the Catholic parish remains understudied by contemporary social scientists due to conceptual confusion, lack of sustained research attention, and the absence of a core network of scholars. The American Parish Project (TAPP) aims to coalesce a shared conceptual understanding of “parish,” guiding a new generation of methodologically rigorous and pastorally relevant research. Support from the Louisville Institute will (1) enable the participation of five early-career scholars in a ground-breaking seminar on the sociology of the parish; (2) fund a post-seminar summary “Report of Parish Life” to be disseminated to all U.S. dioceses and seminaries; and (3) sponsor receptions for “parish scholars” at three annual meetings of the Association for the Sociology of Religion. The project will contribute to the vitality of Christianity in North America through its focused attention on Catholic congregational life, its fostering of new networks among scholars, and its intentional connections to the pragmatic decision-making of church leaders today.