RPS is a three-letter abbreviation that may refer to:
A society
- Royal Pharmaceutical Society, in the United Kingdom
- Royal Philharmonic Society, in the United Kingdom
- Royal Photographic Society, in the United Kingdom
- Racial Preservation Society, a defunct British pressure group
A school
- Revere Public Schools
- Robert Pattinson School, a specialist language school in the United Kingdom
- Roundwood Park School, a specialist maths and computing school in the United Kingdom
- Rutgers Preparatory School, New Jersey
A group
- Royal Protection Squad, a general name for the two branches who provides protective security for the U.K. Royal Family.
- RPS Group plc, a consultancy in the United Kingdom
- Reform Party of Syria
- Rajasthan Police Services, a law enforcement agency in Rajasthan state
A measure
- Requests per second, a measure of resource use
- Revolutions per second, a measure of angular velocity
- Rounds per second, the rate of fire of a firearm
A system
- Reactor Protective System, a set of safety components in a nuclear power plant
- Roadway Package System, former name of FedEx Ground
- Radioisotope Power System, a type of Multi-Mission Radioisotope Thermoelectric Generator used on NASA projects such as the Mars Science Laboratory
- Redundant Power System or Redundant Power Supply, variations of an Uninterruptible power supply
Other
- Real People Slash, a synonym of real person fiction
- Records of the Parliaments of Scotland, a project digitising the records of the pre-1707 Parliament of Scotland
- Regulated Product Submissions, a Health Level 7 Standard for electronic submissions to regulatory agencies
- Relying Party Suite, an authentication system that adds tokens to each request sent to the Windows Live Data website
- Renewable Portfolio Standard, a government regulatory policy
- Rock-paper-scissors, a game
- Rock, Paper, Shotgun, a British PC Gaming website
- Roket Pengorbit Satelit, an Indonesian space rocket family for satellite launch
- Rychu Peja SoLUfka, polish rapper
- Role-playing shooters
- Risk-based Planning and Scheduling, a scheduling technique combining deterministic and stochastic analysis
- Relative Percent Survival