The Diana Motors Company was an early United States automobile manufacturing company. The company produced automobiles from 1925 to 1928. The St. Louis based company was a subsidiary of the Moon Motor Car company. The company did not source its own components, rather, it produced "assembled" cars out of third party components. As of 2011, there were 12 known remaining vehicles produced by the company.
- "Lady Diana - 1926 Diana Eight De Luxe Sedan". hemmings.com. Retrieved 2018-11-01.