NBIA

NBIA may refer to:


 * Niels Bohr International Academy, a Center for Theoretical Physics at the Niels Bohr Institute, Copenhagen
 * Neurodegeneration with brain iron accumulation, a group of degenerative diseases of the brain
 * (New) Bangkok International Airport (Suvarnabhumi Airport), an international airport serving Bangkok, Thailand
 * National Biomedical Imaging Archive, a National Cancer Institute repository of medical images for researchers and imaging tool developers
 * Normandy Beach Improvement Association
 * North Bali International Airport
 * North Bali International Airport