Fernand Fau was a French illustrator and cartoonist whose work was widely published in popular journals around the turn of the 19th century.

Fau was born in Poitiers in 1858. He produced copious illustrations under the pseudonym "Fanfare". He made the illustrations for the drama by Ferny "Le Secret du manifestant" at the "shadow show" in the cabaret Le Chat Noir. He also illustrated the shadow show Une Affaire d'honneur by Jules Jouy at Le Chat Noir. In 1890 Le Chat Noir put on his Idylle, a revue in one act with music by Charles de Sivry. His illustrations appeared in the Chat Noir humorous magazine and also in Le Rire. He illustrated many children's books throughout his career, and was a satirist. Fau was also versed in Art Nouveau, and exhibited at the Salon des Cent in 1895.

Fernand Fau died in Paris in 1915.