L5
# L5

L5 or L-5 may refer to:

## Entertainment

* L5 (band), French female pop music group
* L5 Games, video games developer published by Gravity Interactive
* Gibson L5, electric guitar
* "Home on Lagrange (The L5 Song)", a filk song

## Science

* Haplogroup L5 (mtDNA), human mitochondrial DNA haplogroup
* L5, the fifth lumbar vertebra
* Lagrangian point 5 in an astronomical solar system
* Lp space for p=5
* Ribosomal protein L5, a human gene
* Ubiquitin carboxyl-terminal hydrolase L5, a human gene

## Transportation

* GPS L5, a GPS signal
* Stinson L-5 Sentinel, aircraft used by the United States Army Air Forces in World War II
* Barcelona Metro line 5
* HMS L5, a 1917 British L class submarine
* Junkers L5, a 1920s German six-cylinder, water-cooled, inline aircraft engine
* PRR L5, an American electric locomotive
* SP&S Class L-5, an 1897 steam locomotives class
* Strv L-5, a 1929 Swedish tank designed by Landsverk
* USS L-5 (SS-44), a 1916 United States Navy L-class submarine

## Other uses

* L5 Society, a society promoting Dr. Gerard K. O'Neill's vision of space colonization
* ISO/IEC 8859-9 (Latin-5), an 8-bit character encoding
