NAO or nao may refer to: Organisations National Academy Orchestra of Canada, a Canadian training orchestra National Applications Office, a former program of the United States Department of Homeland Security National Audit Office (disambiguation), in several nations Nautical Almanac Office (disambiguation) HM Nautical Almanac Office, in the United Kingdom Nautical Almanac Office, at the United States Naval Observatory New Age Outlaws, a wrestling tag team Science and technology Sodium oxide (NaO) North Atlantic oscillation, a climatic phenomenon Nao (robot), a humanoid robot developed by Aldebaran Robotics 13221 Nao, an asteroid People Nao (given name), a Japanese given name Nao (singer), a United Kingdom music artist Places Näo, a village in Estonia Nao, Iran, a village in Kurdistan Province Nenets Autonomous Okrug, a federal subdivision of Russia Other uses Carrack, a sailing ship known as a nao in Spanish Nanchong Gaoping Airport (IATA code), an airport in China Carrack (Spanish: nao), a sailing ship Nao (musical instrument) (鐃), see List of Chinese musical instruments Nao, a fictional character in the Aquablue comic Nao Porcelain, a brand owned by Lladro