QM may refer to:

• Quizmania, the ITV's Quiz game show
• Quartermaster
• Queen Mother, in a monarchy
• , a Cunard ocean liner
• Quantum mechanics, in physics
• Quality management
• Quantitative Methods
• Queensland Museum collection code
• Queen Margaret Union, at the University of Glasgow
• Air Malawi IATA airline designator
• OpenQM, referred to as 'QM', a commercial multi-value database system
• Quest Master in the fantasy world of Neverwinter Nights
• Quadratic Mean, in mathematics

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