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
See also Guilloux
References
External links Distribution of the surname Guillou in France