L7 or L-7 may refer to:

Music and culture

  • L7 (band), a grunge/metal band from Los Angeles, California
  • L7 (album), a 1988 album by the band
  • L-Seven, a post-punk band from Detroit, Michigan

    Science and engineering

  • L7 (machine gun)
  • L7, the application layer in the OSI model of computer communications
  • A layer 7 switch or load balancer
  • l7-filter, a network packet classifier for Linux
  • Landsat 7, an earth observation satellite
  • Motorola SLVR L7, a mobile phone
  • Royal Ordnance L7, a tank gun
  • The L space for p=7 in mathematics
  • L 7 (vehicle), a 1927 three-wheeler truck


  • L7, IATA code for Laoag International Airlines