GCG may refer to:
;Biochemistry
* GCG, a codon for the amino acid
alanine
Alanine (symbol Ala or A), or α-alanine, is an α-amino acid that is used in the biosynthesis of proteins. It contains an amine group and a carboxylic acid group, both attached to the central carbon atom which also carries a methyl group side ...
*
Gallocatechin gallate, a flavonol
*
Proglucagon, a protein
*GCG (General Computer Group) was collection of programs for the analysis of gene and protein sequences, now defunct
;Medical
*
Ghost cell glaucoma
;Other
*
Gallantry Cross, Gold of the Republic of Venda
*
Geological Curators' Group, a UK charity promoting geology
*
Global Church of God
The Global Church of God (GCG) is a Sabbatarian church based in England. It was founded in Glendora, CA in 1992 by Roderick C. Meredith. Following the dissolution of most church operations in the United States, GCG's operations shifted to the U ...
, a Sabbatarian church based in England
*
Government College Gujranwala
Government College Gujranwala (گورنمنٹ کالج گوجرانوالہ) alias Government Postgraduate College for Boys Satellite Town Gujranwala is one of the oldest educational institution of Gujranwala. The foundation stone was laid by Edu ...
, in Pakistan
*
The Grilled Cheese Grill, an American restaurant chain
*
Guardian Capital Group
Guardian Capital Group, founded in 1962, operates several fully owned subsidiaries whose operations are to provide investment management services, financial advisory services, retail distribution of mutual funds, insurance, and general corporate ...
, a Canadian financial services company
*
Gwaun-Cae-Gurwen
Gwaun-Cae-Gurwen ( cy, Gwauncaegurwen) is a village and community in the borough of Neath Port Talbot, South West Wales. Historically a part of Glamorgan, Gwaun-Cae-Gurwen is a parish made up of the electoral wards of Gwaun-Cae-Gurwen and Lower ...
, a village in Neath Port Talbot, Wales
*
Knight Grand Cross of the Royal Guelphic Order
The Royal Guelphic Order (german: Königliche Guelphen-Orden), sometimes referred to as the Hanoverian Guelphic Order, is a Hanoverian order of chivalry instituted on 28 April 1815 by the Prince Regent (later King George IV). It takes its name ...
, a Hanoverian order of chivalry
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