George Gilmore (1898–1985) was a Protestant Irish Republican Army leader during the 1920s and 1930s. During his period of influence the Republican movement moved significantly to the left. After leaving the movement in 1934 he remained a significant figure on the Irish left.
Born in County Dublin, Ireland, he led the South County Dublin Battalion of the IRA from 1915 to 1926. He fought in the IRA in the Irish War of Independence and in the Irish Civil War on the Anti-Treaty IRA side. After the defeat of the anti-Treaty forces he served as the secretary of the later Taoiseach Seán Lemass. In October 1925 he organised the escape of 19 IRA prisoners from Mountjoy Prison in Dublin. He was arrested for IRA activities 1926, released 1927, arrested 1931, and released again in 1932 when Fianna Fáil were elected to government. His treatment in Arbour Hill prison from 1931-2 was abysmal. Gilmore refused to wear prison clothing and remained naked other than a couple of towels from December to March. When Fianna Fáil secured victory Frank Aiken, former Chief of Staff of the IRA and new minister for defence went to see Gilmore on March 9, the next day all republican prisoners were released. 30'000 supporters greeted the men at College Green, Dublin.
In the late 1920s as a member of the IRA's Army Council he negotiated with representatives of the Soviet government in an attempt to arrange military training for selected officers of the IRA. After the election of the first Fianna Fáil government under Éamon de Valera in March 1932 Gilmore was one of the representatives of the Army Council that liaised with de Valera.
On 14 August 1932 he was shot and wounded by plain clothes members the Garda Síochána in County Clare, an incident that was blamed on the police by an official Tribunal of Inquiry that reported one month later. Along with Roddy Connolly, Nora Connolly O'Brien, Peadar O'Donnell and Michael Price he was one of the founders of the Republican Congress, a left wing socialist Irish Republican group, in 1934. The group broke up in 1935 over internal differences. He was later active in 1936–39 as a supporter of the International Brigades in the Spanish Civil War.
During the 1960s when the Republican Movement once again moved to the left Gilmore and O'Donnell were once again in demand as speakers and as writers in Republican publications.
- J. Bowyer Bell, The Secret Army: The IRA 1916-1979 (revised & updated edition), The Academy Press, Dublin 1979. ISBN 0-906187-27-3
- George Gilmore, The Irish Republican Congress, The Cork Workers' Club, Cork 1978.
- Mike Milotte, Communism in Modern Ireland: The Pursuit of the Workers' Republic since 1916, Gill & Macmillan, Dublin 1984. ISBN 0-7171-0946-1
- 1901 Census of Ireland, household return
- Bowyer Bell, The Secret Army, p. 51
- Bowyer Bell, The Secret Army, p. 53-54
- Bowyer Bell, The Secret Army, p. 84
- Cronin, Sean. Frank Ryan, in search of the republic. p40-42
- Bowyer Bell, The Secret Army, p. 79
- Biwyer Bell, The Secret Army, p. 100
- Bowyer Bell, The Secret Army, p. 101
- Mike Milotte, Communism in Modern Ireland, p. 150
- Bowyer Bell, The Secret Army, p. 132
- Bowyer Bell, The Secret Army, p.345.
- "Obituary". Archived from the original on October 28, 2009. Retrieved October 13, 2010.
- Biography in Searc's Web Guide to 20th Century Ireland