RGS
RGS is an abbreviation for:
- Burgos Airport , Spanish airport northeast of the city of Burgos according to the IATA airport code
- Ratsgymnasium Stadthagen , an ancient and modern mathematical and natural science grammar school and a European school in Stadthagen (district of Schaumburg)
- Reiniger, Gebbert & Schall , a former German company
- Religious of the Good Shepherd , a religious order of women, see Sisters of the Good Shepherd
- RGS Automobile Components , former British automobile manufacturer
- Rheingau-Gymnasium Schöneberg , a high school in Berlin-Friedenau
- Rio Grande Southern Railroad , a narrow-gauge railway line in the US state of Colorado
- Royal Geographical Society , a learned society in London
RGs stands for:
- Rattling noises , a symptom of the lungs