L7

L7 or L-7 may be:

* L7 (band), a female grunge band
* L-seven, another music group
* L7 (machine gun)
* L7-filter, a classifier for Linux's Netfilter
* Landsat 7 earth observation satellite
* Laoag International Airlines and Linea Aerea SAPSA (IATA airline code L7)
* Motorola SLVR L7 mobile phone
* Royal Ordnance L7 tank gun
* Square (slang) ("L7" refers to a hand gesture describing a geometric square)