The airport code BNA stands for Berry Field Nashville, reflecting the airport's original name and history. When the airport was established in 1937, it was named Berry Field in honor of Colonel Harry S. Berry, a prominent Tennessee administrator for the Works Progress Administration (WPA) who oversaw its construction. While the facility was officially renamed Nashville International Airport in 1988 to reflect its growing global status, the International Air Transport Association (IATA) code remained BNA. In 2026, this legacy is still celebrated through "BNA Vision," a multi-billion dollar expansion program. The "B" serves as a permanent reminder of the airfield’s origins as a Great Depression-era public works project, even as the airport has evolved into a high-tech hub for the "Music City" and the broader Southeast region.