| Office: | Teachta Dála |
| Term Start: | May 2002 |
| Term End: | February 2011 |
| Constituency: | Limerick West |
| Office2: | Senator |
| Term Start2: | 12 June 1998 |
| Term End2: | 12 September 2002 |
| Constituency2: | Labour Panel |
| Birth Date: | 21 May 1961 |
| Birth Place: | Limerick, Ireland |
| Party: | Fianna Fáil |
| Spouse: | Patsy Breen |
| Children: | 3 |
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.[1]
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.[1]
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.[2]
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.[3]
He served as chairman of Limerick GAA County Board.