RN or Rn may refer to:

Places

Rio Grande do Norte Rio Grande do Norte (, , ) is one of the states of Brazil. It is located in the northeastern region of the country, forming the northeasternmost tip of the South American continent. The name literally translates as "Great Northern River", ref ...

, Brazilian state (ISO 3166-2:BR code RN) * Province of Rimini, Italy (ISO 3166-2:IT code) *

County Roscommon "Steadfast Irish heart" , image_map = Island of Ireland location map Roscommon.svg , subdivision_type = Country , subdivision_name = Ireland , subdivision_type1 = Province , subdivision_name1 = Connacht , subdi ...

, Ireland (code)

Politics

National Rally (France) The National Rally (french: Rassemblement National, ; RN), until 2018 known as the National Front (french: link=no, Front National, ; FN), is a Far-right politics, far-rightAbridged list of reliable sources that refer to National Rally as fa ...

(''Rassemblement national''), a far-right French political party * Resistencia Nacional, a revolutionary socialist party in El Salvador * or

National Renewal (Chile) National Renewal ( es, Renovación Nacional, RN) is a liberal conservative political party in Chile. It is a member of Chile Vamos, a center-right to right-wing coalition. Sebastián Piñera, the former President of Chile, is a member of the par ...

, a liberal conservative party in Chile *

Ruch Narodowy National Movement ( pl, Ruch Narodowy, RN) is an ultranationalist political party in Poland. It is led by Robert Winnicki. It was founded in 2012 as an organization, and in 2014 it was registered as a political party. It is a part of the Confe ...

, a Polish far-right political party * Fuerzas Armadas de la Resistencia Nacional, was the military arm of the National Resistance, a Salvadoran communist organization

Science and technology

Radon Radon is a chemical element with the symbol Rn and atomic number 86. It is a radioactive, colourless, odourless, tasteless noble gas. It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through ...

, symbol Rn, a chemical element *

rn (newsreader) ''rn'' (short for ''Read News'') is a news client (or 'newsreader') written by Larry Wall and originally released in 1984. It was one of the first newsreaders to take full advantage of character-addressable CRT terminals ( vnews, by Kenneth Almq ...

, a Usenet news client *

Newline Newline (frequently called line ending, end of line (EOL), next line (NEL) or line break) is a control character or sequence of control characters in character encoding specifications such as ASCII, EBCDIC, Unicode, etc. This character, or a ...

, represented as \r\n in certain operating systems *

Euclidean space Euclidean space is the fundamental space of geometry, intended to represent physical space. Originally, that is, in Euclid's Elements, Euclid's ''Elements'', it was the three-dimensional space of Euclidean geometry, but in modern mathematics ther ...

, with ''n'' dimensions, denoted by

\textbf^n

\mathbb^n

* Round nose, a type of

bullet A bullet is a kinetic projectile, a component of firearm ammunition that is shot from a gun barrel. Bullets are made of a variety of materials, such as copper, lead, steel, polymer, rubber and even wax. Bullets are made in various shapes and co ...

Recurrent nova A nova (plural novae or novas) is a transient astronomical event that causes the sudden appearance of a bright, apparently "new" star (hence the name "nova", which is Latin for "new") that slowly fades over weeks or months. Causes of the dramati ...

, a class of repeating cataclysmic variable stars

Other

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...

, UK *

Radio National Radio National, known on-air as RN, is an Australia-wide public service broadcasting radio network run by the Australian Broadcasting Corporation (ABC). From 1947 until 1985, the network was known as ABC Radio 2. History 1937: Predecessors an ...

, Australia *

Registered nurse A registered nurse (RN) is a nurse who has graduated or successfully passed a nursing program from a recognized nursing school and met the requirements outlined by a country, state, province or similar government-authorized licensing body to o ...

, a licensed health care provider * '' RN: the Memoirs of Richard Nixon'', an autobiography * Registered Identification Number, a US FTC code used on clothing labels * Air Horizons, a former airline (IATA: RN) * Kirundi language (ISO 639-1: RN) {{disambiguation, geo