John James McNeill (1868 – 14 June 1943) was an Australian politician and trade unionist.

After achieving a primary school education, McNeill worked as a shearer and then became a selector at Woosang.

He sold his farm to prospect for gold during the Coolgardie, Western Australia gold rush and then returned to Victoria to farm at Macarthur before becoming an organiser for the Australian Workers' Union (AWU) in western Victoria and the Riverina of New South Wales.

McNeill contested the Victorian Legislative Assembly seat of Glenelg for Australian Labor Party in 1906.

McNeill was the General President of the Australian Workers' Union from 1939 until his death in the Sydney suburb of Coogee of a coronary occlusion.