| Lucy Middleton | |
| Constituency Mp: | Plymouth Sutton |
| Term Start: | 5 July 1945 |
| Term End: | 4 October 1951 |
| Predecessor: | The Viscountess Astor |
| Successor: | Jakie Astor |
| Birth Name: | Lucy Annie Cox |
| Birth Date: | 9 May 1894 |
| Party: | Labour |
Lucy Annie Middleton (née Cox; 9 May 1894 – 20 November 1983) was a Labour politician in the United Kingdom.
In 1936, she married James Middleton, General Secretary of the Labour Party.[1]
In the 1945 landslide general election, Middleton was elected Member of Parliament for Plymouth Sutton, gaining the seat from the Conservatives, after the retirement of her predecessor Nancy Astor, Viscountess Astor.
Middleton held Plymouth Sutton until 1951, when it was gained by another member of the Astor family, Jakie Astor.
Middleton was a member of the Wimbledon Labour Party when the idea of publishing a book on the contribution of women to the labour movement was put forward as a way to celebrate International Women's Year. The Labour Party agreed to publish the book, and Middleton edited the essays of the nine younger women she had invited to contribute. When finished the Labour Party General Secretary decided there was no money to publish the book, Still, Croom Helm agreed to publish it as Women in the Labour Movement, the British experience in 1977.