Bengt af Klintberg is a Swedish folklorist, ethnologist, and artist who is known for his work on modern urban legends. His work reached a large audience with such books as Råttan i pizzan (The Rat in the Pizza), published in 1986, and Den stulna njuren (The Stolen Kidney) published in 1994. Klintberg is so widely known for his work on urban legends that the common Swedish word for urban legend for a while was the eponymous "klintbergare" ("klintbergers").