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
See also M9 (disambiguation)