Selma Ottilia Lovisa Lagerlöf (, also US: , Swedish: [²sɛlːma ²lɑːɡɛˌɭøːv] (listen); 20 November 1858 – 16 March 1940) was a Swedish author and teacher. She published her first novel, Gösta Berling's Saga, at the age of 33. She was the first female writer to win the Nobel Prize in Literature, which she was awarded in 1909. Additionally, she was the first female to be granted a membership in The Swedish Academy in 1914.
Ny, uforkortet udgave af fortællingen om drengen Niels Holgersen, der forvandles til en tommeliden og på ryggen af en gås flyver over Sverige, er en af Selma Lagerlöfs mest kendte og elskede bøger. Som H.C. Andersens eventyr har den fascineret små og store læsere, som har levet med i de spændende, fantastiske og farlige episoder - og samtidig lært af dens klogskab og usentimentalitet.