Trion may refer to: Trion, Georgia, a town in Chattooga County, Georgia, United States Trion (neural networks), a localized group of neurons in the cortex and a basic unit in the trion model Trion (physics), a quasiparticle in a solid Trion Worlds, a video game developer and publisher Trion Supercars, an American car manufacturer The :2 rectangle, one of the twelve special orthogons
In fiction Alpha Trion, the name of several fictional characters in the various Transformers universes Trion, a special kind of energy in World Trigger