Preus is a surname of Norwegian origin and may refer to:

People

• Anne Grete Preus (1957-2019), Norwegian singer
• Christian Keyser Preus (1852–1921), American Lutheran clergyman who served as the second president of Luther College
• David W. Preus (1922 – 2021), last head of the American Lutheran Church
• Herman Amberg Preus (1825–1894), Norwegian-American Lutheran clergyman and key figure in organizing the Norwegian Synod
• J. A. O. Preus (1883–1961), American politician and Governor of Minnesota
• J. A. O. Preus II (1920–1994), president of the Lutheran Church–Missouri Synod
• J. A. O. Preus III (1953–2022), American university administrator and president of Concordia University, Irvine
• Leif Preus (1928-2013), Norwegian photographer
• Margi Preus, American children's writer
• Ove J. H. Preus (1880-1951), American academic, president of Luther College (1932-1948)
• Robert Preus (1924–1995), American Lutheran pastor, professor, author, and seminary president

Other

• Preus Museum, national museum for photography in Horten, Norway
• Preus, a DC Comics character