NTI may refer to:
People Nti (surname)
Miscellanea
Network Telephone Interface, alternative term for the network interface device NTi Audio, company National Telecommuting Institute, non-profit organization dedicated to work-at-home opportunities for primarily the disabled New Technology Institute, training venue in the Eastside of Birmingham, England Nociceptive trigeminal inhibition tension suppression system, dental mouthguard Northwest Territorial Imperative, North American separatist movement Nuclear Threat Initiative, non-profit organization working to prevent catastrophic attacks and accidents with weapons of mass destruction Nunavut Tunngavik Incorporated, legal representative of the Inuit of Nunavut Vector NTI, software package NTI, the IATA code for Steenkool Airport, Indonesia