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If is a conjunction used in English conditional sentences.

If or IF may also refer to:

Arts and entertainment[edit]

Film and television[edit]


  • IF, a fictional character in the Hyperdimension Neptunia game series
  • Interactive fiction, text-based computer games featuring interactive stories and environments
  • Shin Megami Tensei If..., a 1994 video game in the Shin Megami Tensei series


  • If (magazine), subtitled "Worlds of Science Fiction"
  • If... (comic), a political comic strip which appears in the UK newspaper The Guardian
  • "If—" (published 1910), a poem by Rudyard Kipling



  • If (band), 1970s British progressive jazz-rock band
  • I-F, stage name of Ferenc E. van der Sluijs, a Dutch producer and DJ
  • In Flames, a melodic death metal band from Sweden, and a song from their album Lunar Strain



Business and organizations[edit]

Science and technology[edit]

Biology and medicine[edit]

Computing and mathematics[edit]

Other uses in science and technology[edit]

Other uses[edit]

  • If, a small island in the Bay of Marseille, France; location of the Château d'If
  • Impact factor, a measure reflecting the average number of citations to articles published in scholarly journals
  • Intermittent fasting, a diet having recurring periods of fasting
  • Internally Flawless, a grade of diamond clarity

See also[edit]