| Honorific-Prefix: | The Right Honourable |
| Lord Clyde | |
| Honorific-Suffix: | PC |
| Office: | Lord Justice General |
| Term Start: | 23 December 1954 |
| Term End: | 25 April 1972 |
| Predecessor: | The Lord Cooper of Culross |
| Successor: | The Lord Emslie |
| Office1: | Lord Advocate |
| Term Start1: | 7 November 1951 |
| Term End1: | 6 January 1955 |
| Predecessor1: | John Wheatley |
| Office3: | Member of the House of Lords Lord Temporal |
| Term Start3: | 1955 |
| Term End3: | 1975 Life Peerage |
| Office4: | Member of Parliament for Edinburgh North |
| Term Start4: | 23 February 1950 |
| Term End4: | 23 December 1954 |
| Predecessor4: | George Willis |
| Party: | Unionist |
| Birth Date: | 1898 10, df=yes |
James Latham McDiarmid Clyde, Lord Clyde, (30 October 1898 – 30 June 1975) was a Scottish Unionist politician and judge.
Born on 30 October 1898 at Heriot Row, Edinburgh, Clyde was the eldest son of Anna Margaret McDiarmid (d. 1956), (daughter of Professor Peter Wallwork Latham of Cambridge) and James Avon Clyde, Lord Clyde.[1] He was educated at Edinburgh Academy, Trinity College, Oxford and the University of Edinburgh, and was admitted as an advocate in 1924 and as a King's Counsel in 1936.
He was an unsuccessful parliamentary candidate for Midlothian South and Peebles at the 1945 general election,[2] and was elected as Member of Parliament for Edinburgh North at the 1950 election, holding the seat until December 1954.
He was appointed a Privy Counsellor and Lord Advocate in 1951, and in 1954 was raised to the bench as Lord President, with the judicial title Lord Clyde. He held this office until 1972.His father had previously also served as Lord Advocate and Lord President.
His son, James Clyde, Baron Clyde became a member of the Court of Session and latterly a Law Lord.