The Federation of the Jewish Communities in Romania (Romanian: Federația Comunităților Evreiești din România - Cultul mozaic, FCER) is a cultural association in Romania representing the Jewish community.

The organisation was originally founded as the Federation of Unions of Jewish Communities in Romania (Federaţiei Uniunilor de Comunităţi Evreiești din România, FUCER) in 1936 by the Unions of Communities of the Old Kingdom and of the Provinces (Uniunile de Comunităţi din Vechiul Regat și din Provincii), which included the Union of Jewish Communities of the Old Kingdom, the Union of Jewish Communities of Transylvania and Banat, the Union of Jewish Communities of Bucovina, and the Union of Jewish Communities of Bessarabia.

The first elected president of the organisation was Sigmund Birman, a philanthropist and industrialist.

From 1941 to 1944 it was banned by the government of dictator Ion Antonescu, and replaced with the pro-government Jewish Centre of Romania (Centrala Evreilor din România), before being re-established in 1945.

The FCER contested the 1996 general elections, receiving 12,746 votes (0.1%) and winning a single seat in the Chamber of Deputies under the electoral law allowing organisations representing ethnic minority groups to be exempt from the electoral threshold only applied as long as they received 10% of the vote required for a single seat in the Chamber of Deputies.