QG

QG or qg may refer to:

==Science and technology== Quantum gravity, a theory in physics that aims to unify general relativity and quantum mechanics Quadratic gravity, a particular theory of quantum gravity Quasigeostrophic, an atmospheric dynamics theory; see Geostrophic wind Quadrature Generator; see quadrature amplitude modulation Nissan QG engine, an automotive engine series ATCvet code QG, Genito-urinary system and sex hormones, a section of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products quod google (q.g.), an internet variation on Latin reference quod vide to indicate further information available