The Amalgamated Society of Leather Workers was a trade union representing tanners and workers involved in making leather goods in the United Kingdom.
The union was founded in 1872 as the Leeds and District United Tanners' Society.
In 1897, in an attempt to broaden its remit, it renamed itself as the Amalgamated Society of Tanners, Lacecutters and Beltmakers, and then in the 1900s adopted its final name.
[1] The union long remained small, having 780 members in 1910.
However, from 1912 it was led by a full-time general secretary,[1] and it began to grow, reaching 12,099 members by 1954.