The Episcopal Church of the Mediator is an Episcopal parish church in the Kingsbridge section of The Bronx, New York, designed by Henry Vaughan (architect), architect of the Washington National Cathedral and chapels of the Cathedral of Saint John the Divine, New York.

As of January 2024, it and its green space grounds are under threat of demolition due to the costs of restoration.

This church was consecrated in 1927 by Bishop William Thomas Manning,[3] who called it "the little cathedral of the Bronx" in reference to its size, design, and architectural details.

The church incorporates Tiffany favrile glass windows, including an unusual variant on the "Jesus Blessing the Little Children" Tiffany Studios design by artist Frederick Wilson, two large terra-cotta panels by George Tinworth, and a massive narthex window featuring figures of Jane Addams and Booker T. Washington.

Frontispiece: Line drawing of "NEW CHURCH OF THE MEDIATOR KINGSBRIDGE AVENUE, NEW YORK CITY (in course of construction)"