List of Famous people with last name Guillou

Patrick Guillou is a German-born French former professional footballer who played as a defender.

Jean Victor Arthur Guillou was a French composer, organist, pianist, and pedagogue. Titular Organist at Saint Eustache in Paris, from 1963 to 2015, he was widely known as a composer of instrumental and vocal music focused on the organ, as an improviser, and as an adviser to organ builders. For several decades he held regular master classes in Zurich and in Paris.

Marion Guillou is a French scientist specialized in global food security.

Jean Guillou was a French gymnast. He competed at the 1952 Summer Olympics and the 1956 Summer Olympics.

Jan Oskar Sverre Lucien Henri Guillou is a French-Swedish author and journalist. Guillou's fame in Sweden was established during his time as an investigative journalist, most notably in 1973 when he and co-reporter Peter Bratt exposed a secret and illegal intelligence organization in Sweden, Informationsbyrån (IB). He is still active within journalism as a column writer for the Swedish evening tabloid Aftonbladet. Among his books are a series of spy fiction novels about a spy named Carl Hamilton, and a trilogy(+) of historical fiction novels about a Knight Templar, Arn Magnusson. He is the owner of one of the largest publishing companies in Sweden, Piratförlaget, together with his wife, publisher Ann-Marie Skarp, and Liza Marklund.

Florian Guillou is a French former racing cyclist. He rode in the 2014 Tour de France, finishing 62nd – his only Grand Tour start.

Alfred Guillou was a French painter of Breton heritage.