PM2 may refer to:
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Parallel Multithreaded Machine, a software for parallel networking of computers
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PM2 (software), a software for Node.js process management
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Power management 2 mode, a SATA hard disk configuration which prevents automatic spinup when power is applied
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PM² (PM squared), a project management methodology developed by the European Commission
*''
Paper Mario 2'', a 2004 GameCube game
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''Paper Mario 2'' (remake), 2024 remake released for the Nintendo Switch
*
Pindad PM2, an Indonesian submachine gun
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