Calvary Memorial Church of Oak Park is a nondenominational church on Lake Street in Oak Park, Illinois, United States.

These founders wanted this new church to be free of denominational ties and yet faithful to the Bible.

A fire destroyed much of the facility in 1977, after which the congregation rented facilities for two years until purchasing its existing building on Lake Street in the heart of Oak Park from the First Presbyterian Church.

[1] That existing building is in the Richardsonian Romanesque style, and was modeled on Trinity Church in Boston, with such features as cylindrical towers with conical caps and a clay roof.

Thirteen men have served Calvary Memorial Church as senior pastor (or its historical equivalent).