The Adirondack Thunder are a professional ice hockey team in the ECHL that began play in the 2015–16 season. The team is based in Glens Falls, New York and affiliated with the NHL's Calgary Flames.
The Thunder play their home games at the Glens Falls Civic Center.
The Thunder replaced the AHL's Adirondack Flames after it was relocated to Stockton, California to become the Stockton Heat.