Dr. John Arnold Farm is a historic home and farm and national historic district located in Union Township, Rush County, Indiana.

The farmhouse was built in 1853, and is two-story, Gothic Revival style frame dwelling.

It is sheathed in clapboard and has a five-gabled roof forming a double crossed "T"-plan.

It features a wraparound front porch added about 1900, and a decorative vergeboard.

This article about a property in Rush County, Indiana on the National Register of Historic Places is a stub.