QZ may refer to:

• Indonesia AirAsia (IATA airline code QZ)
• Quartz (publication), a digital global business news publication (with the url qz.com)
• QZ decomposition or generalized Schur decomposition of a matrix, in linear algebra

• MSEA linguistic area
• MSEA sprachbund
• MS Edge
• Mseifreh
• Msembe Airstrip
• M'semen
• MS Emerald Princess
• Msemmen
• M'Semrir
• M'Sendo Kololo
• MS Epsilon
• M.Serres
• Mseto Sports
• MS Etzel
• MS Europa 2
• MS European Envoy
• MS European Gateway
• MS exam
• MS Excelsior Neptune
• MS Exchange 2010 SP2
• MS Explorer
• MS Explorer (1969)
• M=SF
• Ms. Faragonda (Winx Club)
• Ms. Fathimath Dhiyana Saeed