Jacob Aall Ottesen Preus (August 28, 1883 – May 24, 1961) was an American politician. He served as the state auditor for Minnesota from January 5, 1915 to January 5, 1921 and as the 20th Governor of Minnesota from January 5, 1921 to January 6, 1925. He was a Republican. He was a 1903 graduate of Luther College in Decorah, Iowa.

Preus is also notable for his assistance in founding Lutheran Brotherhood and Aid Association for Lutherans , which consolidated in the 1990s to become Thrivent Financial for Lutherans.