| GCMS | Gas Chromatography and Mass Spectrometry | 气相色谱质谱联用仪 |
| GCMS | Global Communication Management System (Sajan, Inc.) | 全球通信管理系统（Sajan，Inc.） |
| GCMS | Government Configuration Management System | 政府配置管理系统 |
| GCMS | Gas Chromatograph Mass Spectrometer | 气相色谱质谱仪 |
| GCMS | Gas Chromatography Coupled Mass Spectroscopy | 气相色谱耦合质谱 |
| GCMS | Gold Coast Montessori School (Gold Coast, Australia) | 黄金海岸蒙特梭利学校（澳大利亚黄金海岸） |
| GCMS | Government Contractor Monitoring Station | 政府承包商监测站 |
| GCMS | Gauger Cobbs Middle School (Delaware, USA) | Gauger Cobbs中学（美国特拉华州） |
| GCMS | Glacier Creek Middle School (Middleton, WI) | 冰川溪中学（威斯康星州米德尔顿） |
| GCMS | Gas Chromatography Mass Spectrometry | 气相色谱-质谱法 |
| GCMS | Gas Chromatography Mass Spectroscopy | 气相色谱质谱 |
| GCMS | Gas Chromatographic Mass Spectrometer | 气相色谱质谱仪 |
| GCMS | Genesee County Medical Society | Genesee县医学会 |