Lorraine Barrett (18 March, 1950- ) is Labour and Co-operative Member of the Welsh Assembly for Cardiff South and Penarth.

Barrett was born in Ynyshir, Rhondda to Rosina and Donald Booth, a retired coalminer, and went to Porth County School for Girls. She was a nurse and a Councillor in the Vale of Glamorgan and Penarth Town Council and worked as an assistant to the current Cardiff South and Penarth Member of Parliament, Alun Michael from 1987-99. She was a member of the Welsh Labour executive and the National Policy Forum .

Barrett is a member of the Transport & General Workers Union and chairs the Co-operative Party Group and the All-Party Group on Animal Welfare within the Assembly.

She married Paul Barrett in 1972 and has a son and a daughter.