掌礼大臣（英语：Lord Great Chamberlain）是英国宫禁官位，在一众国务重臣（英语：Great Officer of State，并非重大国务官位）当中排行第六，位在掌玺大臣（Lord Privy Seal）之后、宫廷长官（Lord High Constable）之前。掌礼大臣过往负责掌管整个西敏宫的皇家事务，但自1960年代起只掌管西敏宫内的皇室业权范围和西敏厅。在皇室加冕仪式中，掌礼大臣也担当重要角色，他除了有权协助君主穿上礼袍外，也可以在加冕宴会前后为君主奉上食水。掌礼大臣另一项职责是规管所有宫廷制服和衣饰的设计和穿戴，以及各类佩章和佩饰的佩戴准则。在正式场合中，掌礼大臣会穿着一件特别的绯红色宫廷制服，并佩带一道黄密钥匙和一道白杖作为其官位的佩饰。

In the United Kingdom, the Lord Great Chamberlain is the sixth of the Great Officers of State (not to be confused with the Great Offices of State), ranking beneath the Lord Privy Seal and above the Lord High Constable. The Lord Great Chamberlain has charge over the Palace of Westminster (though since the 1960s his personal authority has been limited to the royal apartments and Westminster Hall). The Lord Great Chamberlain also has a major part to play in royal coronations, having the right to dress the monarch on coronation day and to serve the monarch water before and after the coronation banquet, and also being involved in investing the monarch with the insignia of rule. He wears a distinctive scarlet court uniform and bears a gold key and a white stave as the insignia of his office.