DGX might refer to:
Nvidia DGX, a series of super computer nodes MOD St Athan (IATA: DGX), a Ministry of Defence airfield connected to the RAF (British Royal Air Force) DGX, a division of Dollar General Quest Diagnostics (NYSE: DGX) A type of bullet, see .460 Weatherby Magnum A series of Yamaha portable grand pianos D-Generation X, an American professional wrestling stable