OOG or Oog may refer to: Groningen, the capital city and main municipality of Groningen province in the Netherlands Oog, a town in the Sool region of the North-Eastern State of Somalia Oog (comics), a giant alien monster that first appeared in Tales of Suspense #27 Out Of Gas, life-support emergency during scuba-diving Ocean Observation Group, a group that measures and monitors the surface temperature and salinity of the upper 2000 meters of the ocean oog, the ISO 639-3 code for Ong, a variant of Ta'Oi language
See also Oog in Al, a residential area in the west of the city of Utrecht in the Netherlands