MM2

mm² is a short form for square millimeter, an international unit of area.

Mm² is a short form for square megameter, also an international unit of area.

MM2 may refer to:

• MM2, a class of force fields; see force field (chemistry)
• MM2 (MMS), an interface utilized by the Multimedia Messaging Service standard
• Mega Man 2, a 1988 video game for the NES
• Mega Man II (Game Boy), a 1991 video game for the Game Boy
• Midtown Madness 2, a 2000 video game for the PC
• Motocross Madness 2, a 2000 video game for the PC
• Might and Magic II: Gates to Another World, a 1988 video game
• Metal Max 2, a 1993 video game for the SNES
• MM2 register, a CPU register used by the MMX extension
• Modigliani–Miller theorem (proposition 2), a theorem on capital structure
• Mario Maker 2, a 2019 video game for the Nintendo Switch
• Murder Mystery 2, a 2023 Netflix film
• Maybach Music 2, a Rick Ross Song from his 2009 Album Deeper Than Rap
• mm2 Entertainment, an Asian media production and distribution company
• Melbourne Metro 2, a proposed rail project in Melbourne, Australia
• Murder Mystery 2, a game in Roblox