Nikanor Teratologen ("Nikanor the teratologist"), real name Niclas Lundkvist, born 27 October 1964 in Kåge, Västerbotten, is a Swedish novelist, essayist, translator and literary critic.
His 1992 debut novel Assisted Living received considerable publicity in Sweden for its transgressive content and advanced use of language, which created a literary scandal and led to speculation about its author.