Francis Rous, also spelled Rouse (c. 1581 to 1659), was an English politician and Puritan religious author, who was Provost of Eton from 1644 to 1659, and briefly Speaker of the House of Commons in 1653. Stepbrother of Parliamentary leader John Pym, he joined him in opposing Arminianism in the Church of England, and played a leading role in the impeachment of Archbishop Laud. When the First English Civil War began in 1642, he supported the 1643 Solemn League and Covenant, and was appointed to the Westminster Assembly.