ORS may refer to: Airports Orcas Island Airport (FAA airport code ORS), San Juan County, Washington, United States Orpheus Island Resort Waterport (IATA airport code ORS), Queensland, Australia Medicine Oculo-respiratory syndrome, a usually transient condition following influenza immunization Olfactory reference syndrome, a mental disorder concerning body odor Oral rehydration solution, a type of fluid replacement used to prevent or treat dehydration Ovarian remnant syndrome, a condition caused by residual ovarian tissue after an oophorectomy Organizations Operational Research Society Orthopaedic Research Society, a professional, scientific and medical organization Places Ors, a commune in Nord, France Ors, Vivaro-Alpine for Oulx, a comune of Turin, Piedmont, Italy Satellites and rockets ORS-1 or USA-231, an American reconnaissance satellite launched in 2011 ORS-4, the first launch of the rocket SPARK (rocket) ORS-5, a satellite launched in 2017 Other uses Michigan Office of Retirement Services, United States ISO 639:ors or Orang Seletar language, native to Malaysia and Singapore Octopole reaction system, a type of Collision/reaction cell OID Resolution System, a system for mapping globally unique object identifiers into DNS name zone files; see ISO/IEC JTC 1/SC 6 Old Red Sandstone, an assemblage of rocks in the North Atlantic region Operational Research Section, part of the British Royal Air Force in the Second World War Operationally Responsive Space Office, a joint initiative of several agencies within the United States Department of Defense Oregon Revised Statutes, the codified body of statutory law governing Oregon, United States Orlando Riva Sound (O.R.S.), former German Euro disco group Overseas Research Scholarship, an award for foreign country nationals to undertake research in the United Kingdom Oxygen reduction system, an active fire protection technique On-Rails Shooter, a type of shooter video game. Ors in List of legal abbreviations