Lücken is a surname of German origin, originating as a patronymic from the personal name Lück. Notable people with the surname include:
Iwar von Lücken (1874–1935), German poet J. Henry Lucken (1896–1984), American politician Robert Lücken (born 1985), Dutch rower
See also Lucken Farm, a bonanza farm near Portland, North Dakota Lück