TG4

TG4 might refer to:
 * Intergraph TG4 - Refer to Intergraph Raster.
 * TG4 (Image Machines), a.k.a. IMageCenter TG4
 * TG4 (Bentley Systems) - An image format associated with Bentley Systems CAD/CAM products such as MicroStation. Possibly the same as one of the other TG4 formats (but which?).
 * EDMICS TG4 - Possibly another name for JEDMICS C4.