GCG may refer to:
- Biochemistry
- GCG, a codon for the amino acid alanine
- Gallocatechin gallate, a flavonol
- Proglucagon, a protein
- GCG (Genetics Computer Group) was a collection of programs for the analysis of gene and protein sequences, now defunct
- Medical
- Other
- Gallantry Cross, Gold of the Republic of Venda
- Geological Curators' Group, a UK charity promoting geology
- Global Church of God, a Sabbatarian church based in England
- Government College Gujranwala, in Pakistan
- The Grilled Cheese Grill, an American restaurant chain
- Guardian Capital Group, a Canadian financial services company
- Gwaun-Cae-Gurwen, a village in Neath Port Talbot, Wales
- Knight Grand Cross of the Royal Guelphic Order, a Hanoverian order of chivalry
This disambiguation page lists articles associated with the title GCG.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: