Anthony Tudor St John 22nd Baron St John of Bletso (born 16 May 1957) is a British peer businessman and solicitor. He is one of the ninety hereditary peers elected to remain in the House of Lords after the House of Lords Act 1999. He speaks on African affairs (and is a notable expert on South Africa and Sierra Leone) deregulation financial services and information technology. Rather than aligning with a particular political party he remains a crossbencher.