The Community and Youth Workers Union (CYWU) was a British trade union created in 1938 by ten female voluntary sector workers.

The union had not authorised any national strike action prior to 2004, although the CYWU is the majority union of the Joint Negotiating Committee (JNC) for youth and community workers.

The CYWU voted to join the Transport and General Workers' Union (TGWU) at its 2005 Conference.

The merger was confirmed on 13 September 2006, following a vote amongst the unions membership (with 82% in favour on a 26% turnout) and approved by the Trades Union Certification Officer on 8 January 2007.

In 2009 the first full history of the union was published Building Rapport: a brief history of the Community and Youth Workers' Union, by Doug Nicholls.