NNSS

The abbreviation NNSS stands for:

• Navy Navigation Satellite System, see Transit (satellite system)
• Nevada National Security Site , a military area 150 km north of Las Vegas where most of the American nuclear tests were carried out
• Nordic Network for Security Studies
• Nouveau numéro de sécurité sociale, see AHV number

This is a disambiguation page for differentiating between several terms identified with the same word.