RIF or Rif may refer to:
Arts and entertainment[edit]
- Renju International Federation, Renju is the professional variant of the board game Gomoku
- R.I.F., a 2011 film
Computing[edit]
- 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[edit]
- 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
- R-39 Rif, Soviet and Russian submarine-launched ballistic missile
People[edit]
- Isaac Alfasi (1013–1103), Rabbi Isaac ben Jacob Alfasi (1013—1103), was a Talmudist and posek
- Riff languages, a grouping of languages spoken in the Rif area
- Riffian people, inhabitants of the Rif Region
- RIF - Russian rap artist
Places[edit]
- 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
Science[edit]
- 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[edit]
- 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