RIF

RIF or Rif may refer to:

Arts and entertainment

 * Renju International Federation, Renju is the professional variant of the board game Gomoku
 * R.I.F., a 2011 film

Computing

 * Requirements Interchange Format, XML file format that can be used to exchange requirements
 * Routing information field, a source route-related field in the token ring network frame header
 * Rule Interchange Format, a W3C recommendation-track effort
 * Russian Internet Forum

Military

 * Reconnaissance in force, a type of military operation used specifically to probe an enemy's disposition
 * The Royal Irish Fusiliers (Princess Victoria's), an infantry regiment of the British Army, raised in 1881
 * Realistic imitation firearm, a replica that realistically portrays a firearm; see Legal issues in airsoft § United Kingdom
 * R-39 Rif, Soviet and Russian submarine-launched ballistic missile

People

 * Isaac Alfasi (1013–1103), Rabbi Isaac ben Jacob Alfasi (1013—1103), was a Talmudist and posek
 * Riffian people, inhabitants of the Rif Region of Morocco

Places

 * Rif (sandbank), in the Netherlands
 * Rif, a mountain chain and a region in Morocco
 * The Republic of the Rif, a short-lived republic in the region which fought against Spanish rule.
 * Rif, Iceland, in the municipality of Snæfellsbær
 * Rif Airport, Iceland

Science

 * Retrieval-induced forgetting, a phenomenon in memory
 * Rif (GTPase), small signalling G protein
 * Rifampicin, the antibiotic
 * Right iliac fossa, part of the surface of the human abdomen
 * The initials on bars of soap purported to have been made of human fat in World War II

Other uses

 * Reading Is Fundamental, an organization promoting children's literacy
 * Reduction in Force, a large-scale ending of employment
 * Riff, a brief relaxed musical phrase repeated over changing melodies
 * Riff languages, a grouping of languages spoken in the Rif area of Morocco