Hosmer Dairy Farm Historic District, also known as Walnut Springs Farm, is a historic dairy farm and national historic district located near Marshfield, Missouri, United States. The district contains two contributing buildings: a dairy barn (c. 1900) with two attached silos and horse barn (c. 1900). The dairy barn is a frame bank barn on a limestone block foundation.
It was listed on the National Register of Historic Places in 1996.