John Langshaw (1725–1798) was an English organist and an organ-builder. Leaving organ cases to others, he specialised in the mechanics, in particular those of chamber barrel organs. He left his native Lancashire to work in London, but returned to Lancashire in 1770. An example of Langshaw's work is in the Judges' Lodgings museum Lancaster. The mahogany case is almost certainly by Gillows, while the barrels are inscribed "John Langshaw / Organ Maker / Lancaster".