Siân Berry, English environmentalist and politician

Siân Rebecca Berry is a British politician who has served as the member of Parliament for Brighton Pavilion since July 2024, succeeding Caroline Lucas. She was a co-leader of the Green Party of England and Wales alongside Jonathan Bartley from 2018 to 2021, and was its sole leader from July to October 2021. From 2006 to 2007, she was one of the Green Party's principal speakers.