St. Joseph Academy is a four-year co-educational high school located in Hammonton, in Atlantic County, New Jersey, United States, serving students in grades 9–12. The Academy was established for the 2020-21 school year, replacing St. Joseph High School, which had operated since 1942 under the auspices of the Roman Catholic Diocese of Camden. The school is accredited by the Middle States Association of Colleges and Schools Commission on Elementary and Secondary Schools. In 2020, the former school permanently closed because of financial problems that were exacerbated by the coronavirus pandemic and the request from the Diocese of Camden.