Other
- D.G. Dei gratia (Latin: "By the grace of God")
- Delta Gamma, a sorority
- Denver General, abbreviated name of Denver General Hospital, former name of Denver Health Medical Center
- Dragon Gate, a Japanese professional wrestling promotion formerly known as Toryumon Japan
- DG, car plate for Danilovgrad, a municipality in Montenegro
- DG (character), the main protagonist in the science fiction channel miniseries Tin Man
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