Trion may refer to:
*
Trion, Georgia, a town in Chattooga County, Georgia, United States
*
Alpha Trion, the name of several fictional characters in the various ''Transformers'' universes
*
Trion (neural networks) Trion is a basic unit of the neural network model of cortical organization called trion model. This unit represents a highly structured and interconnected aggregate of about a hundred of neurons with the overall diameter of about 0.7 mm. Each trion ...
, 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
{{disambig