GRS

GRS may refer to:

Malaysia

 * Gabungan Rakyat Sabah (GRS), a political coalition based in Sabah, Malaysia
 * Gagasan Rakyat Sabah (also known as PGRS), a political party based in Sabah, Malaysia and also a main component party of Gabungan Rakyat Sabah (GRS) coalition.

Education

 * Geneva Reformed Seminary, in Greenville, South Carolina
 * Gifted Rating Scales, an educational assessment test
 * Great River Charter Montessori School, in St. Paul, Minnesota

Science

 * Gamma-ray spectrometer
 * Gamma Ray Spectrometer (2001 Mars Odyssey), an instrument on 2001 Mars Odyssey
 * Genetic risk score
 * Great Red Spot, a feature on Jupiter

Military

 * Global Response Staff, a security role in CIA's Directorate of Support branch
 * Graves Registration Service, now Mortuary Affairs, a service of the United States Army

Other uses

 * General Railway Signal, a former American railway signaling company
 * Gender-affirming surgery, also known as gender reassignment surgery
 * The Gerry Ryan Show, an Irish radio show
 * Global Resource Serialization, part of the IBM z/OS operating system
 * Government Rubber-Styrene (GR-S) produced by the United States Synthetic Rubber Program during World War II
 * Grand Rapids Symphony, in Michigan
 * Grassroot Soccer, an international health organization
 * Gresi language
 * Grosseto Air Base, in Italy
 * Guilford Rail System, now known as Pan Am Railways, an American railway holding company
 * GRS Riflestocks, a Norwegian firearm stock manufacturer
 * Gauche républicaine et socialiste, French political party