St. Joseph's Church is a historic Roman Catholic church at 17 W. Cochran Street in Middletown, New Castle County, Delaware. It was built in 1883–84, and is a small rectangular frame building in the vernacular Gothic Revival style. It has a steeply pitched gable roof with projecting eaves, German siding, belfry, and a two-story rear wing, added between 1885 and 1900. It is currently known as the Holy Hill Worship Center. It was listed on the National Register of Historic Places in 1978.