PM2 may refer to:
Parallel Multithreaded Machine, a software for parallel networking of computers PM2 (software), a software for Node.js process management PM² (PM squared), a project management methodology developed by the European Commission Paper Mario 2, a 2004 GameCube game Paper Mario 2 (remake), 2024 remake released for the Nintendo Switch Pindad PM2, an Indonesian submachine gun PM2, a suborbital test vehicle of the New Shepard rocket made by American Aerospace company Blue Origin