RSI may refer to:

Broadcasting services

* Radio Singapore International, a former radio broadcaster in Singapore *

Radio Slovenia International Radio Slovenia International (RSi) is the international service of Slovenian Radio-Television Slovenia, state radio on FM broadcasting, FM, Internet and via satellite television, satellite. RSi is the only foreign-language radio station in Slove ...

, the international service of Slovenian state radio * Radiotelevisione svizzera di lingua italiana, a Swiss radio and television broadcaster

Computing

RSI register x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant. The 8086 was intr ...

, a 64-bit processor register of x86 CPUs *

Relational Semantics, Inc. Relational Semantics, Inc. (RSI) is an American software company that specializes in case management systems for state courts and agencies. Founded in 1983, RSI is based in Boston, Massachusetts, The Massachusetts Appellate Courts system and ot ...

, an American software company

Finance

* Relative strength index, a technical indicator used in the analysis of financial markets * Revenue and Social Insurance number, an identifier used for tax and welfare purposes in Ireland

Medicine and psychology

* Rapid sequence induction, a method of emergency intubation, involving paralytics and sedation * Repetitive strain injury, a disorder affecting muscles, tendons and nerves from repetitive movements, forceful exertions, vibrations, mechanical compression, or sustained/awkward positions * Residual self image, the concept that individuals tend to think of themselves as projecting a certain physical appearance * The Real, The Symbolic, and The Imaginary, a theory in Lacanian psychoanalysis concerning human perception of reality

Physics

RSI-value In the context of construction, the R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive flow of heat. R-value is the temperature difference per ...

, a measure of how well a two-dimensional barrier resists the conductive flow of heat * '' Review of Scientific Instruments'', a scientific journal

Other organisations

RSI Corporation RSI Corporation (Radiofrequency Safety International) is a safety compliance consulting firm specializing in the telecommunications industry, located in Kiowa, Kansas, United States. The company's focus is Radio Frequency (RF) compliance and tra ...

, an American safety compliance consulting firm * RADARSAT International, a provider of data and information derived from the Canadian RADARSAT satellite program overseen * Red Sports International, an international sports organization supported by the Communist International *

Research Science Institute The Research Science Institute (RSI) is an international summer research program for high school students. RSI is sponsored by the Center for Excellence in Education (CEE) and hosted by MIT in Cambridge, Massachusetts. RSI brings together the top S ...

, an international summer research program for high school students *

Religious Science International The Centers for Spiritual Living, or CSL, is a spiritual philosophy promoting Religious Science that was founded by Ernest Holmes in 1926. Before 2011, it was two organizations known as United Centers for Spiritual Living (formally, United Church ...

, a religious organization

Other uses

* ''

Ṛṣi ''Rishi'' () is a term for an accomplished and enlightened person. They find mentions in various Vedic texts. Rishis are believed to have composed hymns of the Vedas. The Post-Vedic tradition of Hinduism regards the rishis as "great yogis" or ...

'', a term for an accomplished and enlightened person in Hinduism and Buddhism * Regional Snowfall Index, a system used to assess the impact of winter storms in the United States *

Italian Social Republic The Italian Social Republic ( it, Repubblica Sociale Italiana, ; RSI), known as the National Republican State of Italy ( it, Stato Nazionale Repubblicano d'Italia, SNRI) prior to December 1943 but more popularly known as the Republic of Salò ...

or ''Repubblica Sociale Italiana'', a puppet state of Nazi Germany during the later part of World War II {{disambiguation