The Dennisville Historic District is a 60-acre (24 ha) national historic district in the Dennisville section of Dennis Township in Cape May County, New Jersey.

It was added to the National Register of Historic Places on November 24, 1987, for its significance in architecture, industry and maritime history.

[4] The district boundary was increased in 2016 and now includes the William S. Townsend House, which was previously listed individually.

[5] Dennisville, originally named Dennis Creek, was founded in 1726.

The latter operates Middle Township High School.