National Federation of Ceramic Industry Workers' Unions

The National Federation of Ceramic Industry Workers' Unions (Japanese: 全国窯業労働組合連合会, Zenyoren) was a trade union representing workers in the ceramic industry in Japan.

The union was established in 1949, and later affiliated to the Federation of Independent Unions.^[1] By 1970, it had 40,777 members.^[2] In 1989, it affiliated to the Japanese Trade Union Confederation.^[1] In 1995, it merged with several smaller unions to form the All Japan Federation of Ceramics Industry Workers.^[3]