Og

OG may stand for:

Obstetrics and gynaecology
Old Gold, a dark yellow
Own goal, in association football, a goal scored by a player in their own side's goal
, an album by Ice-T
Original Gangsta, a T-shirt company
Objective Glass, see Objective (optics)]
Original Gravity, see Gravity (beer)
Offensive Guard, see Guard (American football)
OG (store), a department store in Singapore

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