St. Mary's Springs Academy (SMSA, formerly St. Mary's Springs High School) is a Catholic, private, coeducational system[clarification needed] serving grades 3-year-old preschool through high school in Fond du Lac, Wisconsin, associated with the Archdiocese of Milwaukee.

The Sisters of Saint Agnes came to the site of the school in 1901 to open a sanitarium after money was donated by local businessman Henry Boyle.

At the start of the 2016–2017 academic year, the new St. Mary's Springs Academy complex opened to students in pre-Kindergarten through grade 12.

The older portion of the building was completely renovated to make better use of space as well as to update classrooms for modern learning.

[2] The landmark bell tower of the old administration building, which could be viewed from across town, was reconstructed on the site of the new school complex.

After plans for the new complex were underway, a separate campaign, called Bring It Back Home, was launched to fund the reconstruction.