QTM

QTM may refer to:


 * QTM, a radiotelephony navigational Q code
 * Quantity theory of money
 * Quantum Turing machine
 * quarter turn metric, a measurement used in puzzle cube analysis, see Optimal solutions for Rubik's Cube
 * quaternary triangular mesh, a method to build a geodesic grid
 * Quantum Corporation (NYSE stock ticker: QTM), see Companies listed on the New York Stock Exchange (Q)
 * Quantum Air (IATA airline code: QO; ICAO airline code: QTM)