NNT

NNT could refer to:

Nan Airport, Thailand; IATA airport code NNT
The Nakai–Nam Theun National Biodiversity Conservation Area in Laos
Nassim Nicholas Taleb
Number needed to treat, an epidemiological measure
Nunthorpe railway station, England; National Rail station code NNT
NAD(P) transhydrogenase, a human mitochondria|mitochondrial enzyme encoded by the NNT gene