Carla Suzanne Denyer (born 1985) is a British politician who has served as co-leader of the Green Party of England and Wales since 2021. She has been a city councillor in Bristol since 2015 (initially for Clifton East ward, and since the 2016 boundary changes for Clifton Down). She has been noted for her lead role in bringing about Bristol City Council's declaration of a climate emergency in 2018, which was the first in Europe.