TGS

TGS is a three-letter acronym which may refer to:

Educational establishments

• The Graduate School at Northwestern University
• Tadcaster Grammar School, a secondary school in North Yorkshire, England
• Tiffin Girls' School, grammar school in Kingston Upon Thames, England
• Takapuna Grammar School, Auckland, New Zealand
• Toowoomba Grammar School, Toowoomba, Australia
• Tonbridge Grammar School, Tonbridge, Kent, England
• Tottenham Grammar School, Tottenham, (now Haringey), London, England
• Townsville Grammar School, Townsville, Australia
• Trinity Grammar School, Summer Hill, Australia
• Trinity Grammar School, Kew, Australia
• The Geneva School, Winter Park, Florida
• Thetford Grammar School, Norfolk, England

Companies

• Transportadora de Gas del Sur, a Southern Natural Gas Transportation Company in Argentina
• TGS-NOPEC Geophysical Company, a Norwegian geoscience data, software and service provider

Computing

• The Great Giana Sisters

Media

• Teen Girl Squad, a subcartoon from the Homestar Runner website cartoons
• Tokyo Game Show, a video game trade show held in Tokyo
• Taipei Game Show, a video game trade show held in Taipei
• The Gathering Storm (novel), by Robert Jordan, of the Wheel of Time series
• The Gamer Studio, a video gaming website.
• The Girlie Show (fictional show), a fictional show in the television series 30 Rock

Music

• Tokyo Girls' Style, a Japanese girl group

Science

• Triglycine sulfate, a material used in infrared sensors
• Transcriptional gene silencing, a type of gene expression regulator