EM-2 could refer to:
- Janson EM-2, a British prototype assault rifle chambered for the .280 experimental cartridge, designed in 1948
- Jeziorański EM-2, a British prototype automatic rifle chambered for the 7.92×57mm cartridge, designed in 1945
This disambiguation page lists and links articles and pages that either have the same names, or use similar terms in their context.