Kuiper or Kuyper is a Dutch surname. Notable people with the name include:
Abraham Kuyper (1837–1920), Dutch politician and theologianAdrian Kuiper (born 1959), South African cricketerDavid Kuiper (born 1980), Dutch rowerDuane Kuiper (born 1950), American baseball playerFranciscus Bernardus Jacobus Kuiper (1907–2003), Dutch IndologistGerard Kuiper (1905–1973), Dutch-American astronomerGlen Kuiper (born 1963) American broadcasterHennie Kuiper (born 1949), Dutch cyclistMichael Kuiper (born 1989), Dutch martial artistNick Kuiper (born 1982), Canadian ice hockey playerNicky Kuiper (born 1989), Dutch footballerNicolaas Kuiper (1920–1994), Dutch mathematicianPeter Kuiper (1929–2007), German actorPiet Kuiper (born 1934), Dutch botanistRienk Kuiper (1886–1966), Frisian-Dutch president of Calvin CollegeRoel Kuiper (born 1962), Dutch historian, philosopher and politicianTaco Kuiper (1941–2004), South African publisher and journalist