John Halligan (born 18 January 1955) is an Irish former independent politician who served as a Teachta Dála (TD) for the Waterford constituency from 2011 to 2020.

[3] After the 2009 local elections, Halligan entered into a pact with Fine Gael and the Labour Party on Waterford City Council.

[3] Following his election to the Dáil in February 2011, Sean Reinhardt was co-opted to replace Halligan on Waterford City Council.

[6] On 15 December 2011, he helped launch a nationwide campaign against a proposed household charge being brought in as part of the 2012 budget.

[18] He retired from the Dáil at the 2020 general election on 8 February, continuing in office as a junior minister until the formation of a new government on 27 June 2020.