4N

4N may refer to:

• 4th parallel north latitude
• Air North's IATA code
• 4N, the production code for the 1976 Doctor Who serial The Hand of Fear
• 4N, A special TSMC semiconductor node built specifically for Nvidia in their Geforce 40 Series of graphics cards

See also

• Hückel's rule, 4n + 2 rule
• Singly even number, a number of the form 4n + 2
• A-4N, a model of Douglas A-4 Skyhawk
• AD-4N, a model of Douglas A-1 Skyraider
• RQ-4N, a model of Northrop Grumman RQ-4 Global Hawk
• F-4N Phantom II, see List of McDonnell Douglas F-4 Phantom II variants
• F7F-4N, a model of Grumman F7F Tigercat
• F4N, a model of Vought F4U Corsair
• N4 (disambiguation)