SQM or sqm may refer to:
Science and technology Square metre (sqm), a unit of area Sky quality meter, an instrument for measuring the luminance of the night sky Supersymmetric quantum mechanics, in theoretical physics
Computing Software quality management, a management process Smart Queue Management, a technique in computer network active queue management
Other uses Sociedad Química y Minera, a Chilean mining and chemical company São Miguel do Araguaia (IATA code), an airport in Brazil