{{wiktionary|RSD}} '''RSD''' most often refers to: * Serbian dinar, ISO 4217 code for the currency of the Republic of Serbia * Reflex sympathetic dystrophy; see complex regional pain syndrome * Rejection sensitive dysphoria in psychology
'''RSD''' may also refer to: {{TOC right}}
== Science == * Redshift-space distortions in cosmology * Repetitive stress disorder, another term for repetitive strain injury * Regulator of sigma D, an anti-sigma factor in ''E. coli'' bacteria
==Statistics== * Relative standard deviation * Robust standard deviation
==Technology == * Really Simple Discovery, an XML format describing some features of a blog service * Remote sensing data * Roller shutter door * Retinal scanning display, another term for a virtual retinal display * Recreational Software Designs, the developer of the game creation system ''Game-Maker''
== People == * Rahul Sharad Dravid, an Indian former cricketer and commentator * Alias of Rob Smith (British musician), British electronic musician
==Schools and school districts== * Rochester School for the Deaf, a school in Rochester, New York, USA * Royal School Dungannon, a grammar school in Northern Ireland * Reading School District in Reading, Pennsylvania * Recovery School District - Louisiana * Rhinelander School District in Rhinelander, Wisconsin * Rochester City School District in Rochester, New York * Rockwood School District in St. Louis County, Missouri * Roosevelt School District in Phoenix, Arizona
==Other uses== * Record Store Day, an annual celebration of independent record stores * RSD-Gaskiya, or Social Democratic Rally, a political party of Niger * Real Social Dynamics, a former US-based company specializing in teaching men how to meet and pick up women, employing Julien Blanc * Reichssicherheitsdienst (Reich security service), SS bodyguard for Hitler and other high-ranking leaders of the Nazi regime * Rock Sound International Airport, Bahamas (IATA code: RSD) * Royalstar, a Chinese home appliance brand, also known as Rongshida or RSD
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