Martin Luther Preparatory School (MLPS) was a college-preparatory school of the Wisconsin Evangelical Lutheran Synod in Prairie du Chien, Wisconsin. It was created in 1979 by the merger of Northwestern Lutheran Academy of Mobridge, South Dakota, and Martin Luther Academy of New Ulm, Minnesota. In 1995, MLPS was moved to the campus of Northwestern Preparatory School in Watertown, Wisconsin. The combined school is now known as Luther Preparatory School.
- http://www.lps.wels.net/podium/default.aspx?t=45999 Archived 2011-07-17 at the Wayback Machine
- "Martin Luther Preparatory School". campion-knights.org. Retrieved December 25, 2019.
- "Prairie Du Chien Correctional Institution Annual Report" (PDF). 2019.