A by-election for the United Kingdom parliamentary constituency of Brent East on 18 September 2003, following the death of Labour Party MP Paul Daisley on 18 June that year. It was won by the Liberal Democrat candidate Sarah Teather.

Sarah Louise Teather is the Director of Jesuit Refugee Service UK and a former British Member of Parliament and Minister. As a Liberal Democrat politician, she founded the All-Party Parliamentary Group on Guantanamo Bay and was chairman of the All-Party Parliamentary Group on Refugees. On stepping down as an MP, she joined the Jesuit Refugee Service as an advocacy adviser and was appointed as country director of JRS UK in December 2015.