Christiana may refer to: Christiana incident (or riot), 1851, an armed intervention by citizens in Lancaster County, Pennsylvania to save a fugitive slave Geography Christiana, Delaware, US Christiana, Pennsylvania, US Christiana, Tennessee, US Christiana, Dane County, Wisconsin, town, US Christiana, Vernon County, Wisconsin, town, US Freetown Christiania, autonomous neighborhood in Copenhagen, Denmark Christiana Island, Cyclades, Greece Christiana, Jamaica Christiana, North West, a town in the North West Province of South Africa Christiana Hundred, an unincorporated subdivision of New Castle County, Delaware, US Christiana, Norway, a former name (1624-1924) for the present-day Norwegian capital Oslo People Christiana Figueres (born 1956), Costa Rican diplomat Christianna Brand (1907–1988), British crime writer and children's author Christiana Cavendish Christiana Mariana von Ziegler (1695–1760), German poet and writer Christiana of Schleswig-Holstein-Sonderburg-Glücksburg (1634–1701), often referred to as Christiane Christiana Oxenstierna (1661–1701), Swedish noble Other Christiana (plant), a genus of plants in the family Malvaceae See also Christiania (disambiguation) Cristiana, a surname (including a list of people with the name)