Lake Louise State Park is a Minnesota state park just north of the Iowa border near the small town of Le Roy in Mower County, Minnesota, directly south of Rochester.

Sometime in the late 1850s or early 1860s, Conrad Hambrecht settled in section 21 of Le Roy Township on the Upper Iowa River near the Old Village of Leroy.

An earthen dam was later built on the river and Hambrecht's land sat along the small lake that was created.

The original dam was washed away and the citizens of Le Roy rebuilt it and named the body of water "Lake Louise" for Hambrecht's sister.

A 1971 internal study recommended that the park be remanded to the county as a regional recreation area, but no such action was ever taken.