Robert Gascoyne-Cecil, 7th Marquess of Salisbury, English academic and politician, Leader of the House of Lords

Robert Michael James Gascoyne-Cecil, 7th Marquess of Salisbury, Baron Gascoyne-Cecil is a British Conservative politician. From 1979 to 1987 he represented South Dorset in the House of Commons, and in the 1990s he was Leader of the House of Lords under his courtesy title of Viscount Cranborne. Lord Salisbury lives in one of England's largest historic houses, the 17th-century Hatfield House in Hertfordshire, and currently serves as Chancellor of the University of Hertfordshire.

The leader of the House of Lords is a member of the Cabinet of the United Kingdom who is responsible for arranging government business in the House of Lords. The post is also the leader of the governing party in the House of Lords who acts as the government party chairperson in the house. The role is always held in combination with a formal Cabinet position, usually one of the sinecure offices of Lord President of the Council, Lord Keeper of the Privy Seal or Chancellor of the Duchy of Lancaster. Unless the Leader is also a departmental minister, being Leader constitutes the bulk of their government responsibilities, but it has never been an independent salaried office. The Office of the Leader of the House of Lords is a ministerial department.