The 2018 Nobel Prize in Literature was awarded to the Polish writer Olga Tokarczuk "for a narrative imagination that with encyclopedic passion represents the crossing of boundaries as a form of life." The prize was announced the following year by the Swedish Academy on 10 October 2019. Tokarczuk is the fifth Nobel laureate in Literature from Poland writing in Polish, after the poet Wisława Szymborska in 1996, and Czesław Miłosz in 1980.

The Nobel Prize in Literature is a Swedish literature prize that is awarded annually, since 1901, to an author from any country who has, in the words of the will of Swedish industrialist Alfred Nobel, "in the field of literature, produced the most outstanding work in an idealistic direction". Though individual works are sometimes cited as being particularly noteworthy, the award is based on an author's body of work as a whole. The Swedish Academy decides who, if anyone, will receive the prize. The academy announces the name of the laureate in early October. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895. Literature is traditionally the final award presented at the Nobel Prize ceremony. On some occasions, the award has been postponed to the following year, most recently in 2018.