QN or qn may refer to:
QNet Ltd, formerly known as QuestNet, GoldQuest, and QI Limited, is a Hong Kong-based direct selling company owned by the QI Group.
QNX (/ˌkjuː ˌɛn ˈɛks/ or /ˈkjuːnᵻks/) is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market.
Qatar National Bank Q.P.S.C. (QNB) (Arabic: بنك قطر الوطني) is a Qatari commercial bank headquartered in Doha, Qatar.
QNAP Systems, Inc. (Chinese: 威聯通科技) is a Taiwanese corporation that specializes in providing networked solutions for file sharing, virtualization, storage management and surveillance applications to address corporate, SMB, SOHO and home user needs.
Qntal is a German "electro-medieval" band founded in 1991 by Michael Popp and Ernst Horn. They later added vocalist Syrah (Sigrid Hausen) to complete the band.
QN5 Music is an independent record label based in New York City, although most of the artists on the label are from the Southeast in the U.S.
QNH is a Q code indicating the atmospheric pressure adjusted to sea level. It is a pressure setting used by pilots, air traffic control (ATC), and low frequency weather beacons to refer to the barometric setting which, when set on an aircraft's altimeter, will cause the altimeter to read altitude above mean sea level within a certain defined region.
QNames were introduced by XML Namespaces in order to be used as URI references. QName stands for "qualified name" and defines a valid identifier for elements and attributes.
The QNI North Queensland Challenge Trophy was a football (soccer) friendly tournament the summer of 2006, hosted in Townsville.