NSF

NSF may refer to:


 * National Secessionist Forces, an insurrectionist organization appearing in Deus Ex.
 * Northwest Secessionist Forces, the predecessor to the National Secessionist Forces, founded in 2030.
 * New Sons of Freedom, the predecessor to the Northwest Secessionist Forces and later the National Secessionist Forces. Active in the late and featured most prominently in Deus Ex: Icarus Effect.