SQR (disambiguation)
# SQR (disambiguation)

SQR may refer to:

## Biochemistry

* Succinate-Q reductase, an enzyme complex
* sulfide:quinone oxidorreductase pathway, see Microbial oxidation of sulfur

## Computing

* SQR, a programming language
* SQR codes, Secure Quick Response codes

## Linguistics

* Siculo-Arabic (ISO 639 language code: sqr)
* Smiting-blade symbol (hieroglyph)

## Mathematics

* square (algebra) (sqr, sq)
* square root (sqr, sqrt)

## Transportation

* Soroako Airport (IATA airport code SQR) Soroako, South Sulawesi, Indonesia
* Alsaqer Aviation (ICAO airline code SQR) defunct Libyan airline, see List of airline codes (A)
* Sultanpur Lodi (Indian rail code SQR), see List of railway stations in India

## Other uses

* SQR Department Store, see Downtown Anaheim
