The Sons of Jacob Synagogue is an historic synagogue at 24 Douglas Avenue in Providence, Rhode Island. It is a two-story brick structure, set on a raised basement. The main facade is three bays wide, with a pair of entry doors sheltered by a simple gable-roof portico. The building was constructed in two stages, 1906 and 1926, and is the major surviving remnant of what was once a large Jewish community in the Smith Hill neighborhood of Providence. The congregation which built it was formed in 1896 by Orthodox Jews who immigrated from Russia. The first stage of the building, its lower level, housed the congregation until it could raise funds to build the upper level, and was then used as a shul. The upper level was designed by Harry Marshak, a self-taught architect and builder born to immigrant Russian Jews, who was probably the first Jewish architect to work in the Providence area.