Harry Duggan is a former member of the Provisional Irish Republican Army (IRA) and a representative of Sinn Féin in County Clare. He was part of an IRA unit based in England, of which Duggan and three others were labelled the "Balcombe Street Gang" by news media after a five-day siege in the eponymous London Street. He and his co-accused were gaoled for seven murders plus other charges.