John Cregan (born 21 May 1961) is an Irish former Fianna Fáil politician who served as a Teachta Dála (TD) for the Limerick West constituency from 2002 to 2011 and a Senator for the Labour Panel from 1998 to 2011. He is from Dromcolliher, County Limerick. On 23 June 1998, Cregan was elected to the 21st Seanad as a Senator for the Labour Panel, at a by-election to fill the seat vacated by the Labour Party Senator Seán Ryan, who had been elected to Dáil Éireann at a by-election. Cregan was elected to Dáil Éireann at the 2002 general election as a Fianna Fáil TD for the Limerick West constituency and was re-elected at the 2007 general election. On 1 February 2011, Cregan announced that he would not be a candidate at the imminent general election following disagreement with the new leader of Fianna Fáil, Micheál Martin. He served as chairman of Limerick GAA County Board.