Gerritsen is a Dutch surname. Notable people with the surname include:
Annette Gerritsen (born 1985), Dutch speed skaterLisa Gerritsen (born "Orszag" 1957), American actor and computer systems consultant/networking specialistMaico Gerritsen (born 1986), Dutch footballerMees Gerritsen (born 1939), Dutch Olympic cyclistPatrick Gerritsen (born 1987), Dutch footballerRinus Gerritsen (born 1946), Dutch bassistRupert Gerritsen (1953–2013), Australian historianTess Gerritsen (born 1953), American novelistWendy Gerritsen (born 1972), Dutch cricketer