Sir Malcolm Thomas Pill (born 11 March 1938) is a former Lord Justice of Appeal, who was the longest-serving member of the Court of Appeal of England and Wales upon reaching mandatory retirement at age 75.
From 1963 to 1964 he was Third Secretary at the Foreign and Commonwealth Office and spent a period in Geneva at the United Nations Commission on Human Rights. For nine years he was chairman of the United Kingdom Committee of the Freedom from Hunger Campaign.
He was a Recorder from 1976 to 1987. He became a Queen's Counsel in 1978, and was appointed a High Court judge on 15 January 1988, receiving the customary knighthood, and assigned to the Queen's Bench Division. From 1989 to 1993, he was Presiding Judge for the Wales and Chester Circuit.
He was appointed a Lord Justice of Appeal on 1 February 1995, and was given the customary Privy Council appointment. Among his most notable judgments is the second appeal in the Stephen Downing case.
He retired from the Court of Appeal on 11 March 2013.
Important decisions of Lord Justice Pill include:
- Smith v Lloyds TSB Group plc  QB 541
- Irving v Penguin Books Ltd
- HJ (Iran) and HT (Cameroon) v Secretary of State for the Home Department  UKSC 31 (at Court of Appeal)
- Delaware v City of Westminster  UKHL 55 (at Court of Appeal)
- FHR European Ventures LLP v Cedar Capital Partners LLC  UKSC 45 (at Court of Appeal)
- Haugesund Kommune v DEPFA ACS Bank  EWCA Civ 579
- Who's Who 2008. London: A & C Black. 2008. ISBN 978-0-7136-8555-8.
- "The Rt Hon Sir Malcolm Pill". Debrett's Limited. Retrieved 20 October 2013.
- "Rt. Hon. Lord Justice Pill honoured as Fellow". Aberystwyth University. Retrieved 20 October 2013.
- The London Gazette: . 20 January 1988.
- The London Gazette: . 6 February 1995.
- "Court of Appeal - Retirement of Lord Justice Pill". Ministry of Justice. 8 March 2013. Retrieved 20 October 2013.
- Pill, Malcolm (1999). A Cardiff Family in the Forties. Chesterfield: Merton Priory Press. ISBN 1 898937 31 1.