Horace Mann Public School No. 13

Horace Mann Public School No. 13 is a historic school building located at Indianapolis, Indiana. It was designed by architect Edwin May (1823–1880) and built in 1873. It is a two-story, square plan, Italianate style red brick building. It has an ashlar limestone foundation and a low hipped roof with a central gabled dormer. A boiler house was added to the property in 1918.

It was listed on the National Register of Historic Places in 1986. It is located in the Holy Rosary-Danish Church Historic District.