What is "nsu"

NSU may refer to:

• Commonwealth Railways NSU class, an Australia class of diesel-electric locomotive
• NASA Space Universe, American punk rock band
• National Socialist Underground, German far-right terrorist group
• Non-specific urethritis, non-gonococcal urethritis
• Garda National Surveillance Unit (NSU), Ireland
• "N.S.U.", song on rock band Cream album Fresh Cream
• NSU Motorenwerke, a German manufacturer of cars and motorcycles