John Joseph Clancy (23 January 1890 – 1 May 1932) was an Irish politician and Sinn Féin Teachta Dála (TD) of the First Dáil for Sligo North from 1918 to 1921. He was a native of Ballygrania, Collooney, County Sligo and a nephew of John Joseph Clancy, bishop of Elphin from 1895 to 1912. He was educated at Summerhill College, Sligo, and worked on the staff of the Congested Districts Board before becoming Secretary to the Sligo County Committee of Agriculture. In September 1917 Clancy was elected president of the Sinn Féin executive for North Sligo. While in prison on 15 September 1918 he was selected as Sinn Féin candidate for North Sligo, and in the 1918 general election, he was elected as part of the Sinn Féin landslide, defeating the Nationalist Thomas Scanlan who had sat for the Sligo North seat since 1909, by 9,030 to 4,242. Like the other Sinn Féin members, Clancy did not take his seat at Westminster but took part in the revolutionary First Dáil in Dublin. Clancy was also Chairman of Sligo County Council. At the first meeting of the County Council on 22 June 1920 he said that their work as a council would be guided towards clearing Britain out of Ireland. He later served as an officer in the Irish Free State Army. He was imprisoned several times and was a hunger striker. He was one of those arrested in May 1918 on allegations of a German plot and was interned in Usk prison. He was arrested twice in 1919, on 15 January and 7 April, and was already serving a term of three months imprisonment when he was sentenced to a further three months with hard labour on 6 June 1919, for unlawful assembly. Clancy served only one term as a TD. He was not re-selected as the Sinn Féin candidate for Sligo for the general election of May 1921. The RIC County Inspector thought that this was because his 'views were not extreme enough - he did not approve of police murders etc.'; Sinn Féin headquarters queried his deselection but received no response from Sligo. Clancy had fallen out with the local IRA over finance. On the instructions of the Dáil, Sligo County Council refused to submit its accounts for audit to the British authorities, who then withdrew all grants and loans, causing a financial crisis and a large increase