Bay City Municipal Airport (IATA: BBC, ICAO: KBYY, FAA LID: BYY) is a city-owned public-use airport located five nautical miles (9 km) east of the central business district of Bay City, in Matagorda County, Texas, United States.
Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned BYY by the FAA and BBC by the IATA.