The Building 800-Austin Hall is a historic building in Montgomery, Alabama inside the grounds of the Mawell Air Force Base. Built in 1931, the Building 800-Austin Hall was commissioned to serve as the main school building for the air Corps Tactical School.

The construction began after the directive of President Herbert Hoover. He asked the Congress to allocate $100,000 for the building, mostly as a way to speed public works that could help offset the widespread unemployment at the time. It opened in 1931 and was named Building 800. It was dedicated in honor of First Lieutenant Charles B. Austin, an Air Corps Tactical School instructor.

In 1988, the Building 800-Austin Hall was added to the National Register of Historic Places due to its rich history.