The Japan Federation of National Public Service Employees' Unions (ja|日本国家公務員労働組合連合会, Kokko Roren) is a trade union representing public sector workers in Japan.
The union was established on 1 October 1975, to bring together the various public sector unions affiliated with the General Council of Trade Unions of Japan (Sohyo). On formation, it had 87,112 members:
| Union | Abbreviation | Membership (1980) | |
|---|---|---|---|
| All International Trade and Industry Ministry Workers' Union | Zenshoko | 9,801 | |
| Zenshiho | 14,848 | ||
| All Radio Wave Control Agency Workers' Union | Zendenpa | 2,127 | |
| All Transportation Workers' Union | Zenunyu | ? | |
| All Weather Bureau Workers' Union | Zenkisho | 4,603 | |
| Zenkenro | 6,541 | ||
| Education Ministry Employees' Union | Monbushokuso | 1,120 | |
| Federation of Unions of the Office of Prime Minister | Sorifuroren | 1,586 | |
| Japan Customs Employees' Union | Zenzeikan | 744 | |
| Zenhomu | 10,298 | ||
| Zenrodo | 19,769 | ||
| National Tax Collectors' Union | Zenkokuzei | 1,800 | |
| Union of Employees of the Harbour Construction Board | Zenkoken | 2,857 | |
| Welfare Ministry Employees' Union | Zenkosei | 3,413 | |
| Zengyokan | 886 |
Membership grew to 138,503 by 1989. That year, Sohyo merged into the Japanese Trade Union Confederation (RENGO). Kokko Roren decided instead to become a founding affiliate of the National Confederation of Trade Unions, although a section which wished to join RENGO split away and formed the Japan Central Federation of National Public Service Employees' Unions.[1] By 2019, the union's membership had fallen to 60,454.[2]
The union's largest affiliates include: