Berthold Keller (8 February 1927 – 28 June 2012) was a German trade union leader.
Born in Konstanz, Keller completed an apprenticeship as a tailor, and found work in a local clothing factory.
[1] As leader of the union, Keller was known as a pragmatist, avoiding industrial action.
The textile industry was in rapid decline, 200,000 jobs being lost from 1978 to 1990, and union membership also decreased.
[1][2] Keller stood down as president of the GTB in 1990, and took a textile industry position, attempting to preserve the remainder of the industry, achieving a reorganisation and formation of a new trust company, with state support.