M102

M102 may refer to:

• Messier 102, an object listed in the Messier Catalogue that remains unidentified
• M102 howitzer, an American light-towed 105 mm howitzer
• Mercedes-Benz M102 engine, an automobile engine developed by Mercedes-Benz
• BMW M102, a BMW piston engine
• M-102 (Michigan highway), a highway in Michigan along 8 Mile Road
• M102 (New York City bus), a bus route in Manhattan