Hans Nielsen Hauge was a 19th-century Norwegian Lutheran lay minister, spiritual leader, business entrepreneur, social reformer and author. He led a noted Pietism revival known as the Haugean movement. Hauge is also considered to have been influential in the early industrialization of Norway.

Lutheranism is a major branch of Protestantism, identifying primarily with the theology of Martin Luther, the 16th-century German monk and reformer whose efforts to reform the theology and practices of the Catholic Church launched the Protestant Reformation.