Nynorsk is one of the two official written standards of the Norwegian language, the other being Bokmål. From 12 May 1885, it became the state-sanctioned version of Ivar Aasen's standard Norwegian language (Landsmål), parallel to the Dano-Norwegian written standard known as Riksmål. The name Nynorsk was introduced in 1929. After a series of reforms, it is still the written standard closer to Landsmål, whereas Bokmål is closer to Riksmål and Danish.

Bokmål is one of the official written standards for the Norwegian language, alongside Nynorsk. Bokmål is by far the most used written form of Norwegian today, as it is adopted by 85% to 90% of the population in Norway. There is no countrywide standard or agreement on the pronunciation of Bokmål and the spoken dialects vary greatly.