QW

QW may refer to:

*Blue Wings, IATA airline designator
*QuakeWorld
*
*Quickwho, a command in MUD-type games
*Quantum well
*"Quoting words", a Perl string function
*SkyKing Turks and Caicos Airways, IATA airline designator

qw may refer to:

*qw-operator in Perl programming language