| Honorific-Prefix: | The Right Honourable |
| The Baroness Corston | |
| Office: | Chair of the Parliamentary Labour Party |
| Term Start: | 11 July 2001 |
| Term End: | 24 May 2005 |
| Leader: | Tony Blair |
| Predecessor: | Clive Soley |
| Successor: | Ann Clwyd |
| Office2: | Member of Parliament for Bristol East |
| Term Start2: | 9 April 1992 |
| Term End2: | 11 April 2005 |
| Predecessor2: | Jonathan Sayeed |
| Successor2: | Kerry McCarthy |
| Office3: | Member of the House of Lords Lord Temporal |
| Term Start3: | 29 June 2005 |
| Term End3: | 9 July 2024 Life peerage |
| Birth Date: | 5 May 1942 |
| Birth Place: | Kingston upon Hull, England |
| Birthname: | Jean Ann Parkin |
| Nationality: | British |
| Party: | Labour |
| Spouse: | Christopher Corston Peter Townsend |
| Children: | 2 |
| Alma Mater: | London School of Economics, Open University |
Jean Ann Corston, Baroness Corston, (; born 5 May 1942), is a British politician and life peer who served as Member of Parliament (MP) for Bristol East from 1992 to 2005, during which time she served as Chair of the Parliamentary Labour Party from 2001 to 2005.
Jean Ann Parkin went to Yeovil Girls' High School (now the Westfield Community School) on Stiby Road in Yeovil and the Somerset College of Arts and Technology. She worked at the Inland Revenue. At the London School of Economics, she gained a Bachelor of Laws in 1989. From 1989 to 1990, she studied at the Inns of Court School of Law. She also studied with the Open University. She became a barrister.
Corston was Member of Parliament (MP) for Bristol East from April 1992 to 2005. Until stepping down at the 2005 general election, she was chair of the Parliamentary Labour Party, the first woman ever to hold that position. She was the first Labour MP to ask a question of Tony Blair at his first Prime Minister's Questions on 21 May 1997.
On 13 May 2005 it was announced that she would be created a life peer, and on 29 June 2005 she was created Baroness Corston, of St George, in the County and City of Bristol.
She was commissioned by the Home Office, to conduct a report into vulnerable women in the criminal justice system of the United Kingdom, published in March 2007. It explores the idea that if a lot of women who are in prison are mentally ill, whether they should be there at all.[1] The report outlines "the need for a distinct radically different, visibly-led, strategic, proportionate, holistic, woman-centred, integrated approach". The report is known as the Corston Report[2] and has largely informed government policy on the matter.[3] Progress and improvements by local probation services, the National Probation Service, Her Majesty's Prison service and the National Offender Management Service (NOMS) are regularly compared to the recommendations in this report.
Corston ceased to be a member of the House of Lords on 9 July 2024 under the House of Lords Reform Act 2014 because of non-attendance in the preceding session of Parliament.[4]
She married first Christopher Corston in 1961 with whom she had a son and daughter. Her partner from 1980 until he died in 2009 was Peter Townsend, the sociologist. The couple married in Bristol in 1985.[5]