QW may refer to:
Airlines
- Qingdao Airlines, China (founded 2014; IATA:<code>QW</code>)
- Blue Wings, Germany (2002–2012; IATA:<code>QW</code>)
Computing
- qw() operator, in Perl
- QWERTY, a keyboard layout
Entertainment and media
- QuakeWorld, a 1996 video game build
- QueerWeek, an unpublished New York magazine project
- Enemy Territory: Quake Wars, a 2007 video game
Other uses
- Quantum well, in quantum physics and materials science
- Quo warranto, a legal writ