The Reformed Episcopal Church of the Atonement is a historic church in the Germantown neighborhood of Philadelphia. It is a parish of the Reformed Episcopal Church's Diocese of the Northeast and Mid-Atlantic and a contributing property to the Tulpehocken Station Historic District.
While the current building (designed by Norman A. Hulme) dates to 1929, the church was founded in 1875 as the Third Reformed Episcopal Church. It took its current name by 1894. Two former pastors of the church, William Culbertson III and Willie Hill (bishop), later became bishops of the Reformed Episcopal Church. Rev Daniel M Stearns also served a notable 28-year pastorate with this congregation.