St. Augustine's Episcopal Church Complex is a historic Episcopal church complex at 6 Old Post Road north of Croton-on-Hudson, Westchester County, New York.

The complex consists of the church and rectory The church consists of the original building and a later parish hall connected by an enclosed hyphen.

The church was built in 1857, the parish hall was added in 1882, and the rectory was completed in 1910.

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