Gmod or GMOD may refer to: Generic Model Organism Database (GMOD), a software project for model organism databases .GMOD, file extension for Golgotha 3D models; See List of filename extensions (F–L) Gamma-ray MODule (GMOD), an instrument on the satellite EIRSAT-1 G-module (G-Mod), in mathematics Garry's Mod (GMod), a sandbox game based on a modification of the first-person shooter video game Half-Life 2