MP9

MP9 or MP-9 can refer to:


 * Brügger & Thomet MP9, a machine pistol
 * Interdynamic MP-9, a submachine gun
 * Ruger MP9, a submachine gun
 * MP9, a zone during the Eocene epoch
 * Mario Party 9, a 2012 Wii video game and the second and final game for the console