The Cox Furniture Store (also known as the Simonson Opera House or Edwards Opera House or New Baird Theater) c. 1890 is a historic site in Gainesville, Florida, United States. Built in the form and style of a small Romanesque Revival church, it is located at 19 Southeast First Avenue. On June 10, 1994, it was added to the U.S. National Register of Historic Places.

• Alachua County listings at National Register of Historic Places
• Alachua County listings at Florida's Office of Cultural and Historical Programs
• Virtual tour of Downtown Gainesville and Related Structures at Alachua County's Department of Growth Management