The Worshipful Company of Armourers and Brasiers is one of the Livery Companies of the City of London. The Armourers' Guild was established in 1322; it received a Royal Charter in 1453. Other Companies, including the Armour Repairers, merged with the Armourers. In 1708, brass workers joined the Company, which was renamed as the Armourers' and Brasiers' Company. The Company does support the metallurgy industry, but does not retain a close association with its original trade, as is the case with a majority of Livery Companies. It exists primarily as a charitable establishment.

The Armourers' and Brasiers' Company ranks twenty-second in the order of precedence of Livery Companies. The Company's motto is We Are One.