Det Norske Akademis ordbok (literally "Dictionary of the Norwegian Academy"), abbreviated NAOB, is one of the largest dictionaries of the Norwegian language and covers its most widely used written variety, Bokmål/Riksmål, which is used by around 90% of Norwegians. It was published as a freely available online dictionary in 2018 by the Norwegian Academy and Kunnskapsforlaget with support from the Parliament of Norway. Knut Olav Åmås has described the dictionary as the Norwegian counterpart of Svenska Akademiens ordbok and the Oxford English Dictionary.