Thomas Galbraith, 2nd Baron Strathclyde, Scottish politician, Chancellor of the Duchy of Lancaster

Thomas Galloway Dunlop du Roy de Blicquy Galbraith, 2nd Baron Strathclyde,, known informally as Tom Strathclyde, is a British Conservative politician. Lord Strathclyde served in the political role of Leader of the House of Lords from the 2010 general election until January 2013 and as Chancellor of the Duchy of Lancaster, having been Leader of the Opposition in the House of Lords (1998–2010). As of 2025, he is the most recent hereditary peer to serve as Leader of the Lords.

The Chancellor of the Duchy of Lancaster is a ministerial office in the Government of the United Kingdom. Excluding the prime minister, the chancellor is the highest ranking minister in the Cabinet Office, immediately after the prime minister, and senior to the Minister for the Cabinet Office. The role includes as part of its duties the administration of the estates and rents of the Duchy of Lancaster.