Margaret Mullane is a British Labour Party politician who has represented Dagenham and Rainham in Parliament since 2024. She took over the seat from Jon Cruddas, who announced in 2022 that he would not seek re-election and for whom she previously worked as office manager. Before entering Westminster, Mullane built substantial experience in local government, having served as a councillor for the Village ward on Barking and Dagenham London Borough Council since 2010. During her time in local government, she held the position of Cabinet Member for Enforcement and Community Safety, giving her particular expertise in crime prevention and public safety matters.

Margaret Mullane's background in both parliamentary office management and local authority leadership has shaped her focus on community welfare and security issues. She writes commentary for Comment Central.