If or IF may refer to: * If (conjunction), a conjunction used in English conditional sentences

Arts and entertainment

Film and television

* '' If....'' (1968), a Lindsay Anderson film starring Malcolm McDowell * ''If'' (2024 film), an upcoming John Krasinski film starring Ryan Reynolds * ''If...'' (TV series), a series of BBC drama-documentaries * "If..." (''Desperate Housewives''), a 2010 episode of ''Desperate Housewives''

Gaming

* IF, a character in the ''Hyperdimension Neptunia'' game series *

Interactive fiction '' Interactive fiction, often abbreviated IF, is software simulating environments in which players use text commands to control characters and influence the environment. Works in this form can be understood as literary narratives, either in the f ...

, text-based computer games featuring interactive stories and environments * '' Shin Megami Tensei If...'', a 1994 video game in the ''Shin Megami Tensei'' series * ''Kill la Kill the Game: IF'', a 2019 video game based on the '' Kill la Kill'' anime

Literature

* ''If'' (magazine), subtitled "Worlds of Science Fiction" * ''

IF Magazine ''If'' was an American science fiction magazine launched in March 1952 by Quinn Publications, owned by James L. Quinn. The magazine was moderately successful, though for most of its run it was not considered to be in the first tier of American ...

'', ''Inside Film'', Australian magazine * ''If...'' (comic), a political comic strip which appears in the UK newspaper ''The Guardian'' * " If—" (published 1910), a poem by Rudyard Kipling

Music

If (band) If was a British progressive rock and jazz rock band formed in 1969. In the period spanning 1970–75, they released eight studio-recorded albums and undertook 17 tours of Europe, the US and Canada. History The band was formed in 1969 by D ...

, 1970s British progressive jazz-rock band *

In Flames In Flames is a Swedish heavy metal band, formed by guitarist Jesper Strömblad in Gothenburg in 1990. Alongside At the Gates and Dark Tranquillity, In Flames pioneered the genres known as Swedish death metal and melodic death metal. Durin ...

, a melodic death metal band from Sweden, and a song from their album ''Lunar Strain'' * I-F, stage name of Ferenc E. van der Sluijs, a Dutch producer and DJ

Albums

* ''If'' (Glass Hammer album), 2010 album by American band Glass Hammer * ''If'' (If album), 1970 album by the English band If * ''if'' (Mindless Self Indulgence album), a 2008 album recorded by Mindless Self Indulgence * '' (if)'', a 2009 album by Diary of Dreams * ''If...'', a 2011 orchestral concept album by Bill Ryder-Jones

Songs

* "If..." (The Bluetones song), 1998 * "If" (Bread song), 1971, covered by many artists, including a UK #1 by Telly Savalas in 1975 * "If" (French Kiss song), 2011 * "If" (Glasvegas song), 2013 * "If" (Janet Jackson song), 1993 * "If" (Kana Nishino song), 2010 * "If" (Pink Floyd song), 1970 * " If (Mata Aetara)", by Day6, 2018 * " If (They Made Me a King)", written by Tolchard Evans, Robert Hargreaves and Stanley J. Damerell, 1934; notably recorded by Perry Como, 1950 * "If", by Jeri Lynne Fraser (as Jeri Lynn), 1959 * "If", by Femme Fatale from ''

Femme Fatale A ''femme fatale'' ( or ; ), sometimes called a maneater or vamp, is a stock character of a mysterious, beautiful, and seductive woman whose charms ensnare her lovers, often leading them into compromising, deadly traps. She is an archetype of ...

'', 1988 * "If", by The Cult from ''

Ceremony A ceremony (, ) is a unified ritualistic event with a purpose, usually consisting of a number of artistic components, performed on a special occasion. The word may be of Etruscan origin, via the Latin '' caerimonia''. Church and civil (secular ...

'', 1991 * "If", by Joe Satriani from his 1995 self-titled album * "If...", by The Divine Comedy from '' A Short Album About Love'', 1997 * "If", by Bananarama from ''

Exotica Exotica is a musical genre, named after the 1957 Martin Denny album of the same name that was popular during the 1950s to mid-1960s with Americans who came of age during World War II. The term was coined by Simon "Si" Waronker, Liberty Record ...

'', 2001 * "If", by Destiny's Child from ''

Destiny Fulfilled ''Destiny Fulfilled'' is the fifth and final studio album by American R&B trio Destiny's Child. It was released on November 16, 2004, by Columbia Records and Sony Urban Music. A comeback release, it marked the return of Destiny's Child after t ...

'', 2004 * "If", by Red Hot Chili Peppers from ''

Stadium Arcadium ''Stadium Arcadium'' is the ninth studio album by American rock band Red Hot Chili Peppers. It was a double-album released on May 5, 2006, on Warner Bros. Records. It produced five singles: " Dani California", " Tell Me Baby", " Snow (Hey Oh)", ...

'', 2006 * "If", by Freemasons from '' Unmixed'', 2007 * "If", by Joni Mitchell from '' Shine'', 2007 * "If", by

Davido David Adedeji Adeleke (born November 21, 1992), popularly known by his stage name Davido, is an American-Nigerian singer, songwriter and record producer. His music blends traditional African elements with global mainstream pop. Davido is widel ...

, 2017 * "If", by R5 from '' New Addictions'', 2017

Business and organizations

* If (insurance company), in the Nordic countries *

IF Metall Industrifacket Metall (IF Metall) is a trade union in Sweden. It was formed in a 2006 merger between the Swedish Industrial Union (Industrifacket) and the Swedish Metalworkers' Union (Metall). Its roots in Metall trace back to 1888. IF Metall ...

, a trade union in Sweden * Illuminati Films, an Indian motion picture production, based in Mumbai * Independent Fabrication, a bicycle manufacturer * Intelligent Finance, a bank *

Interflug Interflug GmbH (german: Interflug Gesellschaft für internationalen Flugverkehr m.b.H.; ) was the national airline of the German Democratic Republic from 1963 to 1990. Based in East Berlin, it operated scheduled and chartered flights to Europea ...

(1958–1991; IATA airline designator IF) * International Federation, any of several world sport governing bodies * International Forum Design (iF), a society best known for its iF design awards *

Islamic Front (Syria) The Islamic Front ( ar, الجبهة الإسلامية, ''al-Jabhat al-Islāmiyyah'') was a Sunni Islamist rebel group involved in the Syrian Civil War, which was formed by the union of seven separate groups on 22 November 2013. Its three la ...

, Sunni Islamist rebel group involved in the Syrian Civil War * Islas Airways (founded 2002; IATA airline designator IF)

Science and technology

Biology and medicine

* ''I''_''f'' current, a component current in the cardiac pacemaker potential *

Immunofluorescence Immunofluorescence is a technique used for light microscopy with a fluorescence microscope and is used primarily on microbiological samples. This technique uses the specificity of antibodies to their antigen to target fluorescent dyes to speci ...

, a form of labeling substances with fluorescent antibodies *

Initiation factor Initiation factors are proteins that bind to the small subunit of the ribosome during the initiation of translation, a part of protein biosynthesis. Initiation factors can interact with repressors to slow down or prevent translation. They have the ...

, an important component in protein synthesis *

Intermediate filament Intermediate filaments (IFs) are cytoskeletal structural components found in the cells of vertebrates, and many invertebrates. Homologues of the IF protein have been noted in an invertebrate, the cephalochordate ''Branchiostoma''. Interme ...

, a component of the cytoskeleton *

Interstitial fluid In cell biology, extracellular fluid (ECF) denotes all body fluid outside the cells of any multicellular organism. Total body water in healthy adults is about 60% (range 45 to 75%) of total body weight; women and the obese typically have a lower ...

, the liquid outside of a cell *

Intrinsic factor Intrinsic factor (IF), cobalamin binding intrinsic factor, also known as gastric intrinsic factor (GIF), is a glycoprotein produced by the parietal cells (in humans) or chief cells (in rodents) of the stomach. It is necessary for the absorption ...

, produced by the stomach

Computing and mathematics

If-then-else In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs,) are programming language commands for handling decisions. Specifically, conditionals perform different computations or act ...

, a conditional statement in computer programming * IF (x86 flag), the Interrupt Flag in the x86 processor architecture * Information filter, or inverse covariance filter, in Kalman filtering *

Interface (computing) In computing, an interface is a shared boundary across which two or more separate components of a computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans, and combinations of these ...

, a shared boundary across which components of a computer system exchange information * Intermediate form, a type of data structure in computer programming

Other uses in science and technology

Information filtering system An information filtering system is a system that removes redundant or unwanted information from an information stream using (semi)automated or computerized methods prior to presentation to a human user. Its main goal is the management of the inform ...

, which removes redundant or unwanted information at a semantic level * Intelligent falling, a satirical "alternative theory" of gravitation *

Intermediate frequency In communications and electronic engineering, an intermediate frequency (IF) is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier sign ...

, in radio transmission or reception * Internal focusing, a lens technology in which focusing occurs only with internal elements * Iodine monofluoride, an unstable interhalogen inorganic compound

Other uses

* If, a small island in the Bay of Marseille, France; location of the

Château d'If The Château d'If () is a fortress located on the Île d'If, the smallest island in the Frioul archipelago, situated about offshore from Marseille in southeastern France. Built in the 16th century, it later served as a prison until the end ...

* If, a prominent example of a

laconic phrase A laconic phrase or laconism is a concise or terse statement, especially a blunt and elliptical rejoinder. It is named after Laconia, the region of Greece including the city of Sparta, whose ancient inhabitants had a reputation for verbal aus ...

Impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as ...

, a measure reflecting the average number of citations to articles published in scholarly journals *

Intellectual freedom Intellectual freedom encompasses the freedom to hold, receive and disseminate ideas without restriction. Viewed as an integral component of a democratic society, intellectual freedom protects an individual's right to access, explore, consider, and ...

, a right to access, explore, consider, and express ideas and information *

Intermittent fasting Intermittent fasting is any of various meal timing schedules that cycle between voluntary fasting (or reduced calorie intake) and non-fasting over a given period. Methods of intermittent fasting include alternate-day fasting, periodic fasting, a ...

, a diet having recurring periods of fasting * Internally Flawless, a grade of

diamond clarity Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called ''inclusions'', and surface defects, called ''blemishes''. Clarity is one of the four Cs of diamond gra ...

Inside forward Forwards (also known as attackers) are outfield positions in an association football team who play the furthest up the pitch and are therefore most responsible for scoring goals as well as assisting them. As with any attacking player, the role ...

, a position in association football * Ilfov County (except Bucharest), on the

vehicle registration plates of Romania The most common format for vehicle registration plates in Romania consists of black letters on white background in the format CC 12 ABC, where CC is a two letter county code, 12 is a two digit group, and ABC is a three letter group. F ...