Gunnar Landtman (1878–1940) was a Finnish philosopher as well as a sociology and philosophy professor. A pupil of Edvard Westermarck, he graduated from the University of Helsinki in 1905. He later became an associate professor there from 1910 to 1927 and then a temporary professor until his death in 1940. Landtman was the first modern sociological anthropologist. His most important journey was a two-year trip to Papua New Guinea where he lived with the Kiwai Papuans from 1910 to 1912.
- Wanderings of the Dead in the Folk-Lore of the Kiwai-speaking Papuans (1912)
- The Poetry of the Kiwai Papuans (1913)
- The folk-tales of the Kiwai Papuans (1917)
- The Pidgin English of British New Guinea (1918)
- Papuan Magic in the Building of Houses (1920)
- The Kiwai Papuans of British New Guinea: A Nature-born Instance of Rousseau's Ideal Community (1927)
- A Descriptive Survey of the Material Culture of the Kiwai People (1937)
- This article incorporates information from the revision as of 2008-09-24 of the equivalent article on the Finnish Wikipedia.