NIAS or Nias may refer to: Organisations National Institute of Advanced Studies (India) Nordic Institute of Asian Studies; See Nordic Centre in Shanghai Netherlands Institute for Advanced Study Northern Ireland Ambulance Service Nederlandsch-Indische Artsen School, defunct Dutch East Indies medical school (1913-41) Places Nias Island, an island off the western coast of Sumatra, Indonesia Nias Regency, a regency in North Sumatra province, Indonesia Other uses Nias-class gunboat Nias people Nias language Nickel Arsenide (NiAs) - a chemical compound of nickel and arsenic, constituent of Nickeline