The Resource Interchange File Format (RIFF) is a generic file container format for storing data in tagged chunks. It is primarily used to store multimedia such as sound and video, though it may also be used to store any arbitrary data.

Riff, RIFF, The 'Riff, or Riffs may refer to:

• Riff, a short, repeated musical phrase, see Ostinato
• "Riff", a song by the DJ Sander van Doorn
• The 'Riff, a colloquial name for the city of Penrith, New South Wales
• Riff, the leader of the Jets in West Side Story
• Riff, the nickname for the Detroit Radio Station WRIF
• Riff (American band), an American rhythm and blues vocal group that was active in the late 1980s and early 1990s
• Riff (Argentine band) an Argentinian hard rock band
• Riff (dinosaur), a dinosaur on Barney & Friends since 2006
• Riff (Sluggy Freelance), a character from Sluggy Freelance
• Riff:Everyday Shooter, a 2007 video game for the PC and PlayStation 3
• Riff Randle, protagonist of the Ramones film Rock and Roll High School