The Janesville Free Public Library is the public library in Janesville, Minnesota, United States.

It is housed in a Carnegie library building constructed in 1912.

[2] It is part of the Waseca-Le Sueur Regional Library System, which is a participant in the Traverse des Sioux Library System.

[3] The Janesville library building was listed on the National Register of Historic Places in 1982 for its local significance in the themes of architecture and educaction.

[4] It was nominated for being a well-preserved example of the 65 libraries founded in Minnesota by Andrew Carnegie's philanthropy, and for its Neoclassical architecture.