John Joe McGirl (25 March 1921 – 8 December 1988) was an Irish republican, a Sinn Féin politician, and a former chief of staff of the Irish Republican Army (IRA).
Born and raised in Ballinamore, County Leitrim, McGirl became involved with the IRA in the 1930s. In 1946, he was arrested along with Cathal Goulding and ten others and was sentenced to 12 months in prison for IRA membership.
McGirl participated in the IRA Border Campaign. In January 1957, McGirl was tried and convicted at Ballinamore courthouse and imprisoned in Mountjoy Prison.
Although a prisoner, he was elected a Sinn Féin Teachta Dála (TD) for the Sligo–Leitrim constituency at the 1957 general election, topping the poll with 7,007 votes (15.7%). Running on an abstentionist ticket, Sinn Féin won 4 seats at the general election including Eighneachán Ó hAnnluain, Ruairí Ó Brádaigh and John Joe Rice. He did not retain his seat at the 1961 general election and his share of the vote was halved and he received only 2,487 votes (7.3%).
In November 1957, he delivered the oration at the funerals of some of the "Edentubber Martyrs" - four IRA members who were killed when a bomb they were preparing accidentally exploded. In 1962, he served on the committee which founded St. Felim's College, Ballinamore.
When the IRA split in 1969, between "Official IRA" and "Provisional IRA" factions, McGirl sided with the Provisionals, who were committed to launching an armed campaign against British rule in Northern Ireland. In 1974, he was interned in Northern Ireland.
McGirl contested the February 1982 and 1987 general elections. In the former contest, he received 2,772 votes (6.1%) and in the latter, 2,627 votes (5.7%).
McGirl served as vice-president of Sinn Féin. Originally he was opposed to the dropping of the Éire Nua policy and was considered an ally of Ruairí Ó Brádaigh. However at the 1986 Sinn Féin Ardfheis, McGirl supported the moves of Gerry Adams and Martin McGuinness to drop the policy of abstentionism, greatly angering his contemporaries Ruairí Ó Brádaigh and Dáithí Ó Conaill.
McGirl was a publican, undertaker and bicycle-repairer in Ballinamore. He was elected a Sinn Féin councillor to Leitrim County Council in 1960, serving chairperson of that body. He was a member of the council at the time of his death. After his death, a monument was erected to McGirl in his native town of Ballinamore. It is located on the bridge crossing the Shannon–Erne Waterway.
A nephew, Francis McGirl, was charged but acquitted of the murder of Lord Mountbatten, who was killed by the IRA when his boat was bombed off the Sligo coast in 1979. His son, Liam McGirl, was co-opted on to Leitrim County Council in 1988 after his father's death. He was subsequently re-elected until 2001 where he retired and handed the seat over to Martin Kenny in 2001.