John O'Neill

John O'Neill (died 1 December 1941) was an Irish businessman who was an Irish Free State senator in 1925. He was formally independent, but took a pro-Cumann na nGaedheal line. He owned O'Neill Motors, a Dublin garage acquired in 1959 by Ryan's Car Hire.

O'Neill served on several committees and commissions on industry and commerce. During World War I he chaired the All-Ireland Munitions and Government Supplies Committee, which tried with limited success to secure war-related contracts for Irish firms. He served on Lord Balfour of Burleigh's 1916–1917 Committee on Commercial and Industrial Policy, dissenting from its final report in particular due to Ireland-specific issues. He chaired the First Dáil's Commission of Inquiry into the Resources and Industries of Ireland, and served on the Economic Relations Committee established in 1921 by Robert Barton, the Dáil's Minister for Economic Affairs, to advise on the economic aspects of the negotiations for the Anglo-Irish Treaty. After independence, he advocated protectionism, He was on the 1934–1938 Banking Commission which led to the creation of the Central Bank of Ireland, attending 94 of its 150 meetings and subscribing to the majority report.

O'Neill was elected to the Seanad at a by-election on 30 March 1925 to fill the vacancy created by the death of George Sigerson, finishing one vote ahead of Patrick McCartan.