Willink is a surname. Notable people with the surname include:
Abraham Willink (1920–1998), Dutch-Argentine entomologistArthur Willink (1850–1913), nineteenth-century British theologian and clergymanCarel Willink (1900–1983), Dutch painter born in AmsterdamHerman Tjeenk Willink (born 1942), Dutch politicianJohn Wakefield Willink, Anglican Dean in the first half of the Twentieth CenturySir Charles Willink, 2nd Baronet (1929–2009), English classical scholar, teacher and baronetSir Henry Willink, 1st Baronet PC, MC, KC (1894–1973), British politician and public servantWillem Willink (1750–1841), wealthy Amsterdam merchant, one of the investors in the Holland Land Company and the Louisiana Purchase