The rapid expansion of digital technologies has transformed religious communication, worship, community formation, and pastoral engagement, raising important questions about the future of ecclesial structures in contemporary Christianity. While significant scholarship exists on digital religion and online worship, limited attention has been given to the possibility of digital dioceses and online parishes within Catholic ecclesiology. This study examines whether digitally mediated communities can legitimately function as ecclesial jurisdictions and explores the theological, canonical, and pastoral implications of such developments. Using the critical-analytic method, the study engages Catholic ecclesiology, canon law, digital religion scholarship, and selected philosophical perspectives, particularly the works of Heidegger, Feenberg, and Plantinga. The central argument is that neither an uncritical acceptance of fully digital ecclesial structures nor a complete rejection of digital participation adequately addresses contemporary pastoral realities. The study finds that digital communities provide meaningful opportunities for evangelisation, faith formation, pastoral accompaniment, and community building. However, the incarnational, sacramental, communal, and hierarchical dimensions of Catholic ecclesiology place significant limits on proposals for entirely virtual dioceses and parishes. The research therefore proposes the Digitally Integrated Ecclesial Model (DIEM), which understands digital spaces as legitimate environments for ecclesial engagement while remaining accountable to existing sacramental and ecclesiastical structures. The principal contribution of the study is the development of DIEM as an original framework that bridges digital innovation and ecclesial continuity. The study recommends greater theological reflection on digital presence, expanded digital pastoral ministries, and the integration of digital participation into diocesan and parish life without compromising the Church's sacramental identity and ecclesial communion.
Keywords: Digital Ecclesiology, Digital Dioceses, Online Parishes, Sacramental Ecclesiology, Digitally Integrated Ecclesial Model (DIEM).