9M

9M or 9-M may refer to:


 * Central Mountain Air (IATA: 9M)
 * New York State Route 9M
 * Northrop N-9M
 * Period-after-opening symbol
 * AIM-9M, a model of the AIM-9 Sidewinder
 * ČZW-9M, a Czech submachine gun made by ČZW
 * DE-9M, see D-subminiature
 * FN FNP-9m, see FN Herstal FNP
 * Kappa 9M, a model of Kappa rocket
 * PC-9M, see Pilatus PC-9
 * Salmson 9M, several models of Salmson 9
 * VF-9M, see VMF-111
 * Yak-9M, see Yakovlev Yak-9
 * 9M, an aircraft registration prefix for Malaysia