Jack O'Connor (trade unionist)

Jack O'Connor (born 1957) is an Irish trade union leader.

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.

In 2000, O'Connor became Vice President of SIPTU, and in 2003 he was elected as General President. 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.