- AECB stands for Acute Exacerbation of Chronic Bronchitis
- AECB stands for Atomic Energy Control Board
- AECB stands for Association for Environment Conscious Building (est. 1989; UK)
- AECB stands for Association for the Export of Canadian Books (est. 1972; Ottawa, Ontario, Canada)
- AECB stands for Arms Export Control Board
- AECB stands for Asociación de Estudiantes de Ciencias Básicas (Beginning Students of Sciences Association, Guatemala)
AECB