The Bloomfield Green Historic District is a 100-acre (40 ha) historic district located in the township of Bloomfield in Essex County, New Jersey, United States. It encompasses Bloomfield Green, a 4-acre (1.6 ha) park. The district was added to the National Register of Historic Places on April 20, 1978, for its significance in architecture, community planning, education, military history, and religion. It has 181 contributing buildings, including several that are part of Bloomfield College.