Craigie Mason Aitchison KC (26 January 1882 – 2 May 1941) was a Scottish politician and judge.
Educated at Falkirk High School and Edinburgh University, where he was the Vans Dunlop Scholar in Mental Philosophy and Muirhead Prizeman in Civil Law, he became an advocate in 1907 and was made a King's Counsel in 1923.
An unsuccessful Liberal candidate for Clackmannan and East Stirlingshire in November 1922 and December 1923, he joined the Labour Party and contested Hartlepool at the October 1924 general election and Glasgow Central in May 1929. He was elected as Member of Parliament (MP) Kilmarnock at a by-election in October 1929, and sat for the constituency until October 1933 as a Labour then National Labour member.
He served as Lord Advocate from June 1929 until October 1933, and was made a Privy Counsellor in 1929. He was raised to the bench as Lord Justice Clerk in October 1933, with the judicial title Lord Aitchison.
His son Craigie (born 1926) is a noted painter, and a member of the Royal Academy.
| Parliament of the United Kingdom | ||
|---|---|---|
| Preceded by Robert Climie |
Member of Parliament for Kilmarnock 1929–1933 |
Succeeded by Kenneth Martin Lindsay |
| Legal offices | ||
| Preceded by Alexander Munro MacRobert |
Lord Advocate 1929–1933 |
Succeeded by Wilfrid Guild Normand |
| Preceded by Lord Alness |
Lord Justice Clerk 1933–1941 |
Succeeded by Lord Cooper |