GRS may refer to: Politics Malaysia Gabungan Rakyat Sabah (GRS), a Malaysian coalition of Sabah-based parties. It was established in 2020 and then registered in 2022 by former United Alliance of Sabah and United Borneo Alliance component parties operating solely in Sabah inspired by the formula of Sarawak-based coalition, Gabungan Parti Sarawak. 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