James Stafford Murchie (c.1850 – 12 September 1888), usually known as J. S. Murchie, was a British trade unionist. Born in Carlisle, Murchie moved to Manchester with his family while young, and became a carpenter. Known for his wide reading on trade and social matters, he became active in the Amalgamated Society of Carpenters and Joiners (ASC&J), and quickly rose in importance. In 1876, he chaired the union's strike committee during major industrial action, and he was soon elected as chair of the union's executive committee. In 1881, aged only 31, he was elected to succeed John D. Prior as general secretary.