RMS may refer to: Places Ramstein Air Base, in Germany (IATA code RMS) (Republic of the South Moluccas), a self-proclaimed republic in the Maluku Islands, founded in 1950 Organizations Learned societies Ramanujan Mathematical Society, a learned society founded in 1985 in India Royal Medical Society, a learned society founded in 1737 at the University of Edinburgh Medical School Royal Meteorological Society, a learned society founded in 1850 in Aylesbury in Buckinghamshire Royal Microscopical Society, a learned society founded in 1839 in London, now headquartered in Oxford Russian Mineralogical Society, a learned society founded in 1817 in Saint Petersburg Russian Musical Society, a learned society founded in 1859 and disbanded in 1917 Schools United States Radnor Middle School, in Radnor, Pennsylvania Redwood Middle School (Saratoga, California) Rice Middle School, in Plano, Texas Richardson Middle School, in Chicago, Illinois Richland Middle School, in Richland Hills, Texas Riverwood Middle School, in Kingwood, Texas Robinson Middle School, in Plano, Texas Rocky Mountain semester, in Leadville, Colorado; now called High Mountain Institute Semester Romulus Middle School, in Romulus, Michigan Roosevelt Middle School (Oakland, California) Rosemount Middle School, in Rosemount, Minnesota Ridgely Middle School, in Lutherville, Maryland Elsewhere Rambhakta Memorial School in Banepa, Kavre, Nepal Reims Management School, in Reims, France Robert May's School, in Hampshire, England The Royal Masonic School for Girls, in Hertfordshire, England Rutland Middle School, in British Columbia, Canada Other organizations Railway Mail Service, a former US mail transportation service Raytheon Missile Systems, a former company which manufactured missiles ("Trades-Union Militants Grouping"), a political organization in Quebec, Canada, in the 1970s Risk Management Solutions, a subsidiary of Moody's Corporation Roads and Maritime Services, a former agency of the New South Wales government, Australia Rotana Media Services, the advertising and marketing wing of Rotana Group Rotating Memory Systems, Inc., a defunct hard disk drive manufacturer RMS, a prefix for Royal Mail Ships and aircraft, UK Royal Society of Miniature Painters, Sculptors and Gravers, originally the Royal Miniatures Society, London Science and technology Biology and medicine Rhabdomyosarcoma, a cancer of connective tissues Rostral migratory stream, one path that neuronal stem cells travel along to reach the olfactory bulb Relapsing Multiple Sclerosis Computing Rate-monotonic scheduling, a scheduling technique in operating systems Record Management Services, file-management processes in OpenVMS operating systems Record Management System, a persistent storage mechanism available to some Java ME configurations Rights Management Services, a component of MS Windows Server 2003 Other uses