Related derivatives include the common Norwegian surnames Haugan, Hauge and Haugen.
Savenac Historic Tree Nursery - Located near Haugan, former USDA Forest Service nursery designated a National Historic Site
Peter Mosby Haugan (born 1958) is a Norwegian Scientist and Director of the Geophysical Institute, University of Bergen.
Rev. Torgeir Haugan was a Lutheran minister who was from Haugan near Brunkeberg, in the Kviteseid municipality of Telemark County, Norway and had immigrated to the United States during 1883.