N86 may refer to :

• N86 road (Belgium)
• N86 road (France)
• N86 road (Ireland)
• HMS Tempest (N86), a submarine
• Spanish Springs Airport FAA code
• Nokia N86 8MP, a 2009 smartphone by Nokia

• 349th Infantry Regiment (United States)
• 349th Rifle Division
• 349th Rifle Division (Soviet Union)
• 349 (year)
• 34 (album)
• 34C3
• 34c3
• 34 Capricorni
• 34 Cassiopeiae
• 34 CE
• 34 Constitutional Principles
• 34 constitutional principles
• 34 (DC Metrobus)
• 3,4-diacetoxybutinylbithiophene:4-acetate esterase
• 3,4-Diaminopyridine
• 3,4-dichloroaniline
• 3,4-Dichlorphenylisocyanate
• 3,4-Dichlorphenyl isocyanate
• 3,4-didehydroadipyl-CoA semialdehyde:NADP+ oxidoreductase
• 3,4-dihydropyran
• 3,4-dihydroxybenzoate carboxy-lyase (catechol-forming)
• 3,4-dihydroxy-L-phenylalanine:2-oxoglutarate aminotransferase
• 3,4-dihydroxy-L-phenylalanine ammonia-lyase (trans-caffeate-forming)
• 3,4-dihydroxyphenylacetate:oxygen 2,3-oxidoreductase (decyclizing)
• 3,4-dihydroxyphenylacetic acid 2,3-dioxygenase