Sarah Brown is a transgender activist and former Liberal Democrat politician. She was the Cambridge City Councillor for Petersfield ward between 2010 and 2014, serving as Executive Councillor for Community Wellbeing since 2013 and served as a member of the LGBT+ Liberal Democrats executive. She is a trans woman and, for several years, was the only openly transgender elected politician in the UK. In 2011, she appeared on the Independent on Sunday "Pink List" as the 28th most influential LGBT person in the UK, dropping to 34th in the 2012 list, but rising again to 27th in the 2013 list.