Nai

Nai or NAI may refer to:

Music

 * Nai (album), an album by singer Anna Vissi
 * Nai (pan flute), a wind instrument, also known as a pan flute (Romania and Moldova)
 * "Nai" (song), a 2007 CD single by Irini Merkouri

Organizations

 * National Academy of Inventors, a US non-profit organization dedicated to encouraging inventors in academia.
 * NASA Astrobiology Institute, an organization supporting research of life in the universe
 * National Amusements, Inc, a privately owned media and entertainment company
 * National Association for Interpretation, a professional organization of interpreters
 * Natural Alternatives International, the company which manufactures the nutritional supplement Juice Plus
 * Netherlands Architecture Institute, a Dutch architecture institute in Rotterdam
 * Network Advertising Initiative, an industry trade group that develops self-regulatory standards for online advertising
 * Network Associates, Inc., a corporation now known as McAfee, Inc.
 * New Atlantic Initiative, a defunct arm of the American Enterprise Institute
 * Norwegian Air International, an Irish airline

Places

 * Nairobi
 * Nai, Rajasthan, a village in India
 * Nai, Razavi Khorasan, a village in Razavi Khorasan Province, Iran
 * County of Nairn, Scotland, Chapman code NAI

Science and technology

 * Network Access Identifier, an Internet standard defined in RFC 4282
 * Sodium iodide, a white, crystalline salt
 * NaI Scintillator

Other uses

 * Nai (caste), in India
 * Nai (noble title), a Thai noble title
 * Nai language, a language of Papua New Guinea
 * National Archives of India, the official archives of the government of India
 * North Adria Aviation (ICAO code), a Croatian airline
 * North Allegheny Intermediate High School, in McCandless, Pennsylvania
 * Nai, or three-legged softshell turtle, from Chinese mythology