The Barnert Memorial Temple is a Reform Jewish synagogue located at 747 Route 208 South, in Franklin Lakes, Bergen County, New Jersey, in the United States. The synagogue is the place of worship for the Congregation B'nai Jeshurun (transliteration from Hebrew as "Children of the Upright"), founded in Paterson in 1847. In 1987, the congregation moved to a new temple building in Franklin Lakes.

The congregation is led by Rabbi Rachel Steiner.

The name "Barnert Memorial Temple" originally referred to its landmark building at Broadway and Straight Street in Paterson. It was named in honor of Miriam Barnert, the wife of Nathan Barnert, a local real estate developer and Mayor of Paterson, who donated the building. In 1970, the Paterson former synagogue building was deconsecrated and converted into a warehouse.