SUT may refer to:

• System Under Test in the context of software testing
• Sport Utility Truck, essentially an SUV with a truck bed
• Sport Utility Tractor, a light truck similar to a semi-truck, but smaller
• Sport Utility Trailer, a travel trailer with a garage area. Also referred to as a Toy Hauler
• H2 SUT, a model of Hummer H2
• Surface and Underwater Target, an electric driven, wire guided torpedo with active and passive homing capabilities of 53.3 cm diameter made by STN Atlas for ASW and ASuW
• Schulz Und Tegener GmbH, a German motor manufacturer
• Sharif University of Technology, an Iranian university
• Shenyang University of Technology, a Chinese university
• Solar Updraft Tower, a solar chimney power plant idea
• Suranaree University of Technology, a Thai university
• Swinburne University of Technology in Melbourne, Australia
• Supply and Use Table, a table part of the United Nations System of National Accounts
• Society for Underwater Technology, a learned society with international membership specialising in subsea technology, science and engineering
• Step-Up Transformer, in the context of high-end audio, turntables and cartridges
• TV Shizuoka, television station in Japan

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