Kiaer or Kiær may refer to: Anders Nicolai Kiær (1838-1919), a Norwegian statistician Benedikte Kiær (born 1969), a Danish politician Dakky Kiær (1892–1980), a Norwegian politician Elias C. Kiær (1827–1911), a Norwegian businessperson Hans Kiær (1795–1867), a Norwegian politician
Ian Kiaer (born 1971), an artist based in London Johan Aschehoug Kiær (1869–1931), a Norwegian paleontologist and geologist Nicolai Kiær (1888–1934), a Norwegian gymnast Rolf Kiær (1897–1975), a Norwegian hydrographer Thorry Kiær (1888–1968), a Norwegian industrialist