Peter Christen Asbjørnsen (15 January 1812 – 6 January 1885) was a Norwegian writer and scholar. He and Jørgen Engebretsen Moe were collectors of Norwegian folklore. They were so closely united in their lives' work that their folk tale collections are commonly mentioned only as "Asbjørnsen and Moe".
Peter Christen Asbjørnsen was born in Christiania (now Oslo), Norway. He was descended from a family originating at Otta in the traditional district of Gudbrandsdal, which is believed to have come to an end with his death. He became a student at the University of Oslo in 1833, but as early as 1832, in his twentieth year, he had begun to collect and write down fairy tales and legends. He later walked on foot the length and breadth of Norway, adding to his stories.
Jørgen Moe, who was born in Ringerike, met Asbjørnsen first when he was fourteen years old, while they were both attending high school at Norderhov Rectory. The building is today the site of Ringerikes Museum, the local museum for the Ringerike region, and contains memorabilia from both Asbjørnsen and Moe. They developed a lifelong friendship. In 1834 Asbjørnsen discovered that Moe had started independently on a search for the relics of national folklore; the friends eagerly compared their results, and determined for the future to work in concert.
Asbjørnsen became by profession a zoologist, and with the aid of the University of Oslo made a series of investigative voyages along the coasts of Norway, particularly in the Hardangerfjord. He worked with two of the most famous marine biologists of their time: Michael Sars and his son Georg Ossian Sars. Moe, meanwhile, having left the University of Oslo in 1839, had devoted himself to the study of theology, and was making a living as a tutor in Christiania. In his holidays he wandered through the mountains, in the most remote districts, collecting stories. In these years he laid the foundation for the great literary its output.