Helen Lawrie Liddell, Baroness Liddell of Coatdyke, PC (born 6 December 1950) is a British Labour Party politician who served as the Member of Parliament (MP) for Monklands East from 1994 to 1997, and then for Airdrie and Shotts until 2005.
Liddell then became the British High Commissioner to Australia until 2009, having previously been appointed a Cabinet Minister as Secretary of State for Scotland.
On 28 May 2010, it was announced in the Dissolution Honours List that she would be created a Life Peer.