St. Peter's Protestant Episcopal Church, Berkeley in Clarksboro is a historic church on King's Highway in the Clarksboro section of East Greenwich Township, Gloucester County, New Jersey, United States.

St. Peter's was founded in Berkeley (now Mount Royal, NJ) in 1770 by the Society for the Propagation of the Gospel, the missionary arm of the Church of England.

The current church was built in 1845 and added to the National Register of Historic Places in 1977.

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