The Federation of Metal ( Spanish: Federación del Metal) was a trade union representing metalworkers in Spain.
The union was founded in December 1976 and affiliated to the Workers' Commissions. [1] The federation's largest affiliate, it had 103,161 members by 1981, and 113,871 in 1993. [2] Later that year, it merged with the National Federation of Mining, to form the Federation of Metalworkers and Miners. [3]