NMI or nmi may refer to:
Organisations National Measurement Institute, the measurement standards body of the Australian Government National metrology institute, in metrology National Museum of Indonesia National Museum of Ireland Nazarene Missions International, a ministry of the Church of the Nazarene Nelson Mandela Institution New Mexico Airlines (ICAO code) Nissan Motor Indonesia NMI Mobility, (Northwestel Mobility Inc) a spin-off of the Canadian company Northwestel NMI, a payment service provider, that acquired Creditcall.
Science and technology Nautical mile (nmi) New Machine Interface, an instruction format used in the IBM i operating system Non-maskable interrupt, in computing NMI (gene)
Other uses Navi Mumbai International Airport (IATA code) No middle initial Nonprofit Marketplace Initiative, an initiative that sought to make individual philanthropic donations more evidence-based Northern Mariana Islands, a U.S. insular area Nyam language (ISO 639 code)
See also NRO Management Information System (NMIS), a computer network