The National Confederation of Trade Unions (全国労働組合総連合, Zenkoku Rōdōkumiai sōrengō), commonly known in Japanese as Zenroren (全労連), is a national trade union center.

Zenroren was founded on November 21, 1989.

Zenroren is not affiliated to any political party, but is generally aligned with the Japan Communist Party.

The following unions are affiliated:

There are also prefectural Federations in all 47 prefectures of Japan.