Alistair MacDonald Clark, Lord Clark, (born 3 December 1955) is a Scottish lawyer who was appointed in 2016 as a Senator of the College of Justice, a judge of the Court of Session.
Alistair Clark began his career a university lecturer, teaching mostly commercial law and company law. He was admitted as an advocate in 1994, and appointed as a Queen's Counsel in 2008.
In May 2016, Clark was appointed as a Senator of the College of Justice. He was installed as a judge on 24 May 2016, taking the judicial title Lord Clark.
On 6 November 2024, Clark was appointed to the Privy Council following being appointed to the First Division of the Inner House on 23 September 2024.