Siân Berry

British politician

Siân Rebecca Berry (born 9 July 1974) is a British politician.

Siân Berry

Siân Berry, 2018 (cropped).jpg
Siân Berry in 2018
Co-Leader of the Green Party of England and Wales
Assumed office
4 September 2018
Serving with Jonathan Bartley
DeputyAmelia Womack
Preceded byCaroline Lucas
Leader of the Green Party in the London Assembly
In office
6 May 2016 – 19 October 2018
LeaderNatalie Bennett
Caroline Lucas
Jonathan Bartley
Preceded byJenny Jones
Succeeded byCaroline Russell
Member of the London Assembly
as the 1st Additional Member
Assumed office
6 May 2016
Preceded byJenny Jones
Principal Speaker of the Green Party
In office
24 November 2006 – 30 November 2007
Serving with Derek Wall
Preceded byCaroline Lucas
Succeeded byCaroline Lucas
Personal details
Born (1974-07-09) 9 July 1974 (age 47)
Cheltenham, Gloucestershire, England
Political partyGreen Party of England and Wales
EducationPate's Grammar School
Trinity College, Oxford
Known forGreen Party Principal Speaker, 2006–07
Mayor of London candidate in 2008, 2016 and 2020

On 4 September 2018, she became Co-Leader of the Green Party of England and Wales alongside Jonathan Bartley. From 2006 to 2007, she was one of the Green Party's Principal Speakers.[1]

She was the party's candidate in the 2008 London mayoral election,[2] and again in the 2016 election, at which she came third.

She is a member of the London Assembly and the only Green Party councillor on Camden Council, representing Highgate.