ATSB may refer to:
Australian Transport Safety Bureau, a federal government body in Australia, investigates air, sea accidents etc. Arbeiter-Turn- und Sportbund, a former worker's sports federation in Germany Astronautic Technology Sdn Bhd, a Malaysian research organization Air Transportation Stabilization Board, a United States government department, concerned with financial stability within the air industry Attractive toxic sugar baits, an insecticide for mosquitos