GGS or GGs may refer to:

Education Geelong Grammar School, in Victoria, Australia Gravesend Grammar School, in Kent, England Guildford Grammar School, in Perth, Western Australia Grosvenor Grammar School, in Belfast, Northern Ireland

Other uses , an Indonesian television series Generations and Gender Survey Gerald Gentleman Station, a power station in Nebraska German Geophysical Society Germany Guard Service Gibson Generating Station, a power station in Indiana Girl Geek Scotland Girl Guides Singapore Global Geo Services, a Norwegian seismic company Global Geospace Science, a NASA program Glucosylglycerate synthase Gobernador Gregores Airport, in Argentina Governor General's Awards, in Canada The Great Giana Sisters,video game Guns, Germs, and Steel Guru Granth Sahib, the central religious scripture of Sikhism Gyro gunsight Ottawa Gee-Gees, the University of Ottawa athletic team

See also GG (disambiguation)