| Adirondack Thunder | |
|---|---|
 | |
| City | Glens Falls, New York |
| League | ECHL |
| Conference | Eastern |
| Division | North |
| Founded | 1990 |
| Home arena | Cool Insuring Arena |
| Colors | Red, black, white, gray |
| Owner(s) | Adirondack Civic Center Coalition |
| General manager | Jeff Mead |
| Head coach | Pete MacArthur |
| Media | The Post-Star WCQL |
| Affiliates | New Jersey Devils (NHL) Utica Comets (AHL) |
| Website | echlthunder |
| Franchise history | |
| 1990–1992 | Cincinnati Cyclones |
| 1992–2001 | Birmingham Bulls |
| 2001–2005 | Atlantic City Boardwalk Bullies |
| 2005–2015 | Stockton Thunder |
| 2015–present | Adirondack Thunder |
| Championships | |
| Division titles | 3 (2016–17, 2017–18, 2023–24) |
| Conference titles | 1 (2023–24) |
 Current season | |
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 New Jersey Devils and AHL's Utica Comets. The Thunder play their home games at the Cool Insuring Arena.
The Thunder replaced the AHL's Adirondack Flames after they were relocated to Stockton, California, to become the Stockton Heat.