This essay explores the crucial yet often overlooked role of religious identity in philanthropy, focusing on how Christian hegemony influences the sector's practices and priorities. While scholars have extensively studied the impact of social identities such as race, gender, and sexuality on philanthropic giving, the significance of religious diversity remains largely neglected. Building upon the existing literature, this essay argues that understanding and embracing religious diversity is essential for fully realizing diversity, equity, inclusion, and justice (DEIJ) within philanthropy.