MM5

MM5 may refer to:


 * MM5 (weather model), a regional mesoscale model for creating weather forecasts and climate projections
 * Mega Man 5, a 1992 NES game in the Mega Man video game series
 * Mega Man V (Game Boy), a 1994 Game Boy game in the Mega Man video game series
 * Might and Magic V: Darkside of Xeen, a 1993 video role-playing game in the Might and Magic series
 * MM5 register, a CPU register used by the MMX extension