Interdenominationalism

Interdenominationalism is a mode of Christian cooperation in which representatives of multiple denominations work together for common aims while preserving their own distinct identities, governance, and creeds. It emphasizes collaborative efforts in worship, evangelism, education, social service, and mission, rather than pursuing formal mergers into a single church body.

Interdenominational work typically involves multi-denominational prayer services, shared outreach programs, relief and humanitarian efforts, youth ministry, and joint mission initiatives. It is distinct from ecumenism in that it seeks practical cooperation and common action without aiming for full church union or doctrinal unification, and it generally preserves denominational autonomy and governance.

Historically, interdenominational activity grew from 18th- and 19th-century revival movements and ongoing Protestant cooperation, expanding in the 20th century through coalitions, councils, and organizations that brought several denominations together for shared programs. In the United States, bodies such as the National Council of Churches and similar interdenominational networks have facilitated collaboration on social, educational, and mission fronts. In many contexts, interdenominational congregations or outreach ministries bring together members from diverse denominational backgrounds who share leadership and programs while maintaining their own denominational identities.

Contemporary interdenominationalism remains a practical vehicle for cooperation on social needs, humanitarian relief, and evangelistic outreach. It faces criticisms that it may dilute doctrinal distinctives, blur accountability, or reflect power imbalances among participating traditions. Proponents argue that it enables effective service and mission across denominational lines while respecting diversity.