Lütken or Lutken is a surname. Notable people with the surname include:
Anne Marie Lütken (1916–2001), Danish painter Augusta Lütken (1855–1910), Danish operatic soprano Christian Frederik Lütken (1827–1901), Danish naturalist David M. Lutken (born 1957), American musician, actor, playwright and director Frances Lütken (born 1950), British cross-country skier Hans T. H. Lütken (1882–?), Norwegian jurist and state auditor Hulda Lütken (1896–1946), Danish poet and novelist Julie Lütken (1788–1816), Danish painter Per Lütken (1916–1998), Danish glassmaker Sigrid Lütken (1915–2008), Danish sculptor