Look up NSW, New South Wales, or nsw in Wiktionary, the free dictionary.

NSW is a short form name for New South Wales, an Australian state.

NSW may also refer to:

• King of Egypt
• National Herbarium of New South Wales, by Index Herbariorum code
• Naval Strike Wing of the UK's Royal Navy Fleet Air Arm
• Navut language of Vanuatu
• Newman–Shanks–Williams prime, a class of number in mathematics
• Nintendo Switch, a hybrid (home and handheld) video gaming console
• United States Naval Special Warfare Command, a military commando force