Lücke, Luecke, or Lucke, is a surname. Notable people with the surname include:

Bernd Lucke (born 1962), German economist and politician (AfD) Fritz Lucke (1902–1991), German journalist Georg Albert Lücke (1829–1894), German surgeon Gottfried Christian Friedrich Lücke (1791–1855), German theologian Hannfried Lucke (born 1964), German organist Heinz Lucke (born 1953), West German canoer John Edwin Luecke, American mathematician John F. Luecke (1889–1952), American politician from Michigan Jörg Lucke (born 1942), East German rower Karsten Lucke (born 1974), German politician Martin Lucke (born 1988), German politician Paul Lücke (1914–1976), German politician (CDU) Steve Luecke (born 1950), American politician from Indiana

See also Lück