title: Guillou
text: # Guillou
  
  Guillou is a surname of Breton origin. It may refer to any the following people:
  
  Guillou derives from the Breton name Gwilhoù which is a hypocorism of the name Gwilherm which is known as William in English.
  
  * Charles Guillou (1813–1899), American naval surgeon
  * Fernand Guillou (1926–2009), French basketball player
  * Jan Guillou (born 1944), Swedish writer and journalist
  * Jean Guillou (1930–2019), French composer, organist, pianist, and pedagogue
  * Jean Guillou (1931–2019), French gymnast
  * Jean-Marc Guillou (born 1945), French footballer and football manager
  * Patrick Guillou (born 1970), French football defender
  