NAIS can mean:

• National Animal Identification System
  National Animal Identification System
  The National Animal Identification System, is a government-run program in the United States intended to extend government animal health surveillance by identifying and tracking specific animals...
  
  , a program intended to identify animals and track them as they come into contact with, or commingle with, animals other than herdmates from their premises of origin.
• National Association of Independent Schools
  National Association of Independent Schools
  The National Association of Independent Schools is a U.S.-based membership organization for private, nonprofit, K-12 schools. Founded in 1963, NAIS represents independent schools and associations in the United States, including day, boarding, and day/boarding schools; elementary and secondary...
  
  
• National Association of Investigative Specialists
• NGO and Academic ICANN Study an international project to review the nature of public representation in the Internet's domain name management organization, the Internet Corporation for Assigned Names and Numbers (ICANN).
• upper sideband
  Sideband
  In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, containing power as a result of the modulation process. The sidebands consist of all the Fourier components of the modulated signal except the carrier...
  
  , an amplitude modulation transmission method by radio
  Radio
  Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
  
  
• NASA Acquisition Internet Service
  NASA Acquisition Internet Service
  The NASA Acquisition Internet Service is a service provided by the NASA in order to disseminate information about NASA procurements. NAIS has been hailed by the GAO as "an effective mechanism for disseminating procurement information to industry, including small businesses."- External links :*...
  
  , web access to current acquisition information over the Internet.

Languages - Romani [Romany] [Gypsy] (central Europe) "Nais" ..means "Thank you".

Lagends - .. "Nais Timova" or Naisia Timoveh was the name of the vailed spirit or angel who inscribed the name of God on people's hearts with her pen of light, at the time of conception. Her myth existed in the land of Arian and Turan (present day Iran, Afghanestan, Ozbakestan, Turkmanestan, Mongolia, Azerbaijan, and Turkey).