John Robert Walmsley Stott, CBE (born April 27, 1921) is a British Christian leader and Anglican clergyman who is noted as a leader of the worldwide evangelical movement. He is famous as one of the principal authors of the Lausanne Covenant in 1974.

Stott played a central role at two landmark events in the history of British evangelicalism. He was chairing the National Assembly of Evangelicals in 1966, a convention organised by the Evangelical Alliance, when Martyn Lloyd-Jones made an unexpected call for evangelicals to unite together as evangelicals and no longer within their 'mixed' denominations. This view was motivated by a belief that true Christian fellowship requires evangelical views on central topics such as the atonement and the inspiration of Scripture. Lloyd-Jones was a key figure to many in the Free Churches, and evangelical Anglicans regarded Stott similarly. The two leaders publicly disagreed as Stott, though not down as a speaker that night, used his role as chairman of the meeting to refute Lloyd-Jones, saying that his opinion went against history and the Bible. The following year saw the first National Evangelical Anglican Congress, which was held at Keele University. At this conference, largely due to Stott's influence, evangelical Anglicans committed themselves to full participation in the Church of England, rejecting the separationist approach proposed by Lloyd-Jones.

These two conferences effectively fixed the direction of a large part of the British evangelical community. Although there is an ongoing debate as to the exact nature of Lloyd-Jones's views, they undoubtedly caused the two groupings to adopt diametrically opposed positions. These positions, and the resulting split, continue largely unchanged to this day.