GMK

AcronymDefinition
GMKGnu Make File
GMKGrand Master Key (locksmithing)
GMKGodzilla, Mothra, and King Ghidorah (monsters; movie)
GMKGrindsted Motor Klub (Danish auto club)
GMKGood Morning Kuya (TV show; Philippines)
GMKGamelan Mitra Kusuma (Indonesian music and dance ensemble)
GMKGlobal Medical Knowledge, Inc. (information and collaboration group)