黄色工会（英语：yellow union），是指与资方妥协或被收买，或是被工贼所控制的工会，常被工人指作假工会。有时亦指资本主义国家中提倡改良主义的工会组织。

黄色工会存在于现今不少大企业、大学之中，基本上均为亲资方的工会。黄色工会在资方的公开和暗地扶持下，往往能取得大量会员份额，并配合一些小恩小惠给予其下会员，以取得工人支持者。黄色工会一般由公务员、企业或大学的中高层人员担任理事工作。在重大政策下，黄色工会成为资方缓解劳工不满情绪的工具，并不时为资方的政策保驾护航。更甚的是，黄色工会会以工人代表自居，采取主动与资方谈判、协商，得出来的结果往往出卖了基层劳工的权益。

A company or "yellow" union is a worker organization which is dominated or influenced by an employer, and is therefore not an independent trade union. Company unions are contrary to international labour law (see ILO Convention 98, article 2). They were outlawed in the United States by the 1935 National Labor Relations Act §8(a)(2), due to their use as agents for interference with independent unions. Company unions persist in many countries, particularly with authoritarian governments.