Gerritsen is a Dutch patronymic surname "son of Gerrit". It is particularly common in the province of Gelderland.[1] Variations on this name include Gerritse, Gerrits, Garritsen and Gerretse(n). Notable people with the surname include:
- Alida Gerritsen-de Vries (1914–2007), Dutch sprinter
- Annette Gerritsen (born 1985), Dutch speed skater
- Carel Victor Gerritsen, (1850–1905), Dutch radical politician and feminist
- Jim Gerritsen, American organic farmer and trade unionist
- Esther Gerritsen [de; nl] (born 1972), Dutch writer
- Lisa Gerritsen (born "Orszag" 1957), American actor
- Maico Gerritsen (born 1986), Dutch footballer
- Marcel Gerritsen (born 1967), Dutch cyclist
- Margot Gerritsen, engineering professor at Stanford University
- Mees Gerritsen (born 1939), Dutch Olympic cyclist
- Patrick Gerritsen (born 1987), Dutch footballer
- Paul Gerritsen (born 1984), New Zealand rower
- Rinus Gerritsen (born 1946), Dutch bassist
- Rupert Gerritsen (1953–2013), Australian historian
- Tess Gerritsen (born 1953), American novelist
- Tim Gerritsen, American video game producer and designer
- Wendy Gerritsen (born 1972), Dutch cricketer
- Gerrits
- Gerritse
- Garritsen