| Jack O'Connor | |
| Office: | Chairman of the Labour Party |
| Leader: | Brendan Howlin |
| Term Start: | 23 April 2017 |
| Predecessor: | Loraine Mulligan |
| Office1: | General President of SIPTU |
| Term Start1: | 6 September 2003 |
| Term End1: | 14 December 2017 |
| Predecessor1: | Des Geraghty |
| Successor1: | Position abolished |
| Office2: | President of ICTU |
| Term Start2: | 9 July 2009 |
| Term End2: | 26 October 2011 |
| Predecessor2: | Patricia McKeown |
| Successor2: | Eugene McGlone |
| Birth Date: | 24 January 1957 |
| Birth Place: | Dublin, Ireland |
| Nationality: | Irish |
| Party: | Labour Party |
Jack O'Connor (born 24 January 1957) is an Irish trade unionist who has served as Chairman of the Labour Party since April 2017. He previously served as General President of SIPTU from 2003 to 2017 and President of ICTU from 2009 to 2011.
Born in northern County Dublin, O'Connor worked in various fields before taking full-time employment with the Federated Workers' Union of Ireland in 1980. In 1990, the union became part of SIPTU, and O'Connor was appointed as its regional organiser for the Midlands.[1]
In 2000, O'Connor became Vice President of SIPTU, and in 2003 he was elected as General President.[2] O'Connor stepped down as General President on 14 December 2017 after completing three terms in the role.[3] [4]
He was appointed to the executive of the Irish Congress of Trade Unions in 2001, becoming Vice President in 2007 and President in 2009. He is also active in the Labour Party and has served on its executive.
At the 2017 Labour Party annual Conference, O'Connor was elected as Party Chairperson, succeeding fellow SIPTU official Lorainne Mulligan. O'Connor was elected unopposed.[5]
On 4 April 2018, O'Connor was selected as the party's general election candidate for Wicklow,[6] however he stepped down as the candidate in September 2019, upon which Paul O'Brien was selected to run instead.[7]