No or NO may refer to:
Linguistics and symbols
- Yes and no, responses
- No, an English determiner in noun phrases
- No (kana) (の, ノ), a letter/syllable in Japanese script
- No symbol (🚫), the general prohibition sign
- Numero sign (№ or No.), a typographic symbol for the word "number"
- Norwegian language (ISO 639-1 code "no")
Places
- Niederösterreich (NÖ), Lower Austria
- Norway (ISO 3166-1 country code NO)
- No, Denmark, a village in Denmark
- Nō, Niigata, a former town in Japan
- No Creek (disambiguation), several streams
- Lake No, in South Sudan
- New Orleans, Louisiana, US or its professional sports teams:
- New Orleans Saints of the National Football League
- New Orleans Pelicans of the National Basketball Association
Arts and entertainment
Film and television
- No (2012 film), a 2012 Chilean film
- Nô (film), a 1998 Canadian film
- Julius No, the titular character of the 1958 novel and 1962 film Dr. No
Music
Albums
- No!, a 2002 album by They Might Be Giants
- No (Boris album), 2020
- No (Old Man Gloom album), 2012
Songs
- "No" (Bulldog song), 1972
- "No" (Little Mix song), from 2021 album Between Us
- "No" (Louane song), from her 2017 album Louane
- "No" (Meghan Trainor song), from her 2016 album Thank You
- "No" (Shakira song), from her 2005 album Fijación Oral, Vol. 1
- "No", by Jason Aldean on his album Relentless, 2007
- "No", by De La Soul on their album The Grind Date, 2004
- "No", by Fontaines D.C. on their album A Hero's Death, 2020
- "No", by Nicolas Jaar on his album Sirens, 2016
- "No", by Monrose on their album Temptation, 2006
- "No", by Moodymann on his album Moodymann, 2014
- "No", by Alanis Morissette from the Japanese edition of Havoc and Bright Lights, 2012 and featured in the Broadway musical Jagged Little Pill
- "No", by Omar Rodríguez-López on his album Equinox, 2013
- "No", by Soulfly from Soulfly (Soulfly album), 1998
- "No", by Timbiriche from Timbiriche VII, 1987
- "N.O", by BTS from their O!RUL8,2? album, 2013
Other media
- Noh (Nō), a style of Japanese theatre
Organizations
- National Offensive, a German neo-Nazi party between 1990–1992
- Aus-Air (IATA code), a defunct Australian airline
- Neos (airline) (IATA code), an Italian airline
Science and technology
- .no, the internet ccTLD for Norway
- Nitric oxide (NO), a chemical compound
- Nobelium (No), a chemical element
- Surreal number (), class of numbers in mathematics
- Normally open, a type of electrical switch
Other uses
- Roh (name) (transliteration: No), a Korean surname