Ms. Bell Ribeiro-Addy was born and raised in Streatham, London and grew up on a council estate on Brixton Hill. She is the joint first woman of direct African descent in the British Parliament and proudly spoke of her Ghanaian heritage during her maiden speech in Parliament. She was elected as the Labour MP for Streatham in 2019 with a majority of 17,690.

She graduated with a Bachelor of Science in Biomedical Science from the University of Bradford. She later gained a Master of Arts in Medical Law & Ethics at Queen Mary University, London in 2007, and a Graduate Diploma in Law in 2015. She was the National Black Students' Officer for the National Union of Students from 2008 to 2010, national co-ordinator of the Student Assembly Against Racism, and the national convenor of the NUS's Anti-Racism/Anti-Fascism campaign. Before becoming a member of Parliament, she was the chief of staff to former Labour frontbencher Diane Abbott MP. Ms. Ribeiro-Addy is a member of the Labour Party’s Socialist Campaign Group and has challenged the role of the media in devaluing black female MPs, particularly regarding errors in the media which carelessly mixed up the identities of black women parliamentarians.

In January 2020, Ms. Ribeiro-Addy was appointed Shadow Minister for Immigration a few weeks after her election as an MP. She was relieved of her position following the election of the current Labour Party Leader, Sir Keir Starmer who recently criticised British BlackLivesMatter protesters for toppling the statue of a prolific and notorious slave trader, Edward Colston, which stood in the city centre of Bristol. Along with other members of the House, Bell has demanded that the British government should have a full parliamentary debate on Britain’s role in the transatlantic slave trade and colonialism.