GRS

GRS can stand for:

• Gamma ray spectrometer, an instrument for detecting elements
• Gender reassignment surgery, transgender surgery
• General Radio Service, CB radio
• General Railway Signal, a railway signaling company
• Genital Retraction Syndrome or penis panic
• Geophysical Research Satellite, launched in 1963
• Gifted Rating Scales, educational assessment test
• Global Registered Share, a share type for Cross Listing of companies
• Global Resource Serialization, the locking facility provided by IBM for data sets and other entities
• Great Red Spot, a feature on Jupiter
• Great River Charter Montessori School, a Montessori charter school in St. Paul Minnesota.
• Guilford Rail System, now known as Pan Am Railways.
• The Gerry Ryan Show, a long-running Irish radio show.