The Central Union of Machinists and Stokers and Kindred Trades of Germany (German: Zentral-Verband der Maschinisten und Heizer sowie Berufsgenossen Deutschlands, ZMH) was a trade union representing machine operators and those in related areas of work, in Germany.

It represented machinists, stokers, and those in related areas of work, regardless of the industry in which they were employed.

In 1919, the union was a founding constituent of the General German Trade Union Confederation,[1] and by 1920, it had 100,287 members.

In 1927, the union established the International Federation of Enginemen and Firemen.

In 1933, the union was banned by the Nazi government.