The First Roumanian-American Congregation, also known as Congregation Shaarey Shomayim, or the Roumanishe Shul, was an Orthodox Jewish congregation at 89–93 Rivington Street on the Lower East Side of Manhattan in New York City. The congregation was organized in 1885 by Romanian-Jewish immigrants, serving the Lower East Side's large Romanian-Jewish community. The Rivington Street building, erected around 1860, switched between being a church and a synagogue and was extensively remodeled in 1889. The First Roumanian-American congregation purchased it in 1902 and again remodeled it.