Term

Mainline Denomination

Historic, large U.S. Protestant denominations, such as the United Methodist Church, that generally adopt liberal theologies and emphasize social justice.

Filed underEcclesiologyChurch History

Definition

A group of historic, large Protestant churches in the U.S. that have generally adopted more liberal theologies and been influential in social justice movements. This includes denominations such as the United Methodist Church, Evangelical Lutheran Church in America, and Presbyterian Church (USA).

Last revised August 14, 2026