Wang Lun (died 1 November 1774) was the leader of the White Lotus sect in Shandong province, China in the 1770s. He preached a millenarian philosophy, emphasizing the imminent coming of the Buddha Maitreya. A martial arts master and self-taught physician, Wang taught his followers yoga, meditation, and the ability to fast for very long periods by drinking purified water. His group became known as the "Pure Water Sect", and by 1774 numbered several thousand.