This DCU research project addresses the call for Catholics to participate in interreligious dialogue and note the absence of Sikhi in most Vatican documents prior to recent times. It then traces recent Catholic-Sikh dialogues or papal tweets about Sikhi or the inclusion of Sikhs at interfaith events. I also argue why Sikh individuals, communities, and institutions should engage in this specific form of interreligious dialogue with Catholic Christians. It then presents how the author envisions Guru Nanak as an early religious exemplar of both interfaith dialogue and embracing religious pluralism and how this example and advocacy can be a boon both for Christians and for Catholic-Sikh dialogue more specifically.