Édouard Riou (2 December 1833 – 27 January 1900) was a French painter and illustrator who illustrated six novels by Jules Verne, as well as several other well-known works.

Riou was born in 1833 in Saint-Servan, Ille-et-Vilaine, and studied under Charles-François Daubigny and Gustave Doré, graduating in 1859. Apart from engravings, his artistic specialties included landscape painting and commemorative art (including works for the opening of the Suez Canal and the marriage of a daughter of the Czar).

His collaboration with Jules Verne started in 1865 with the publication of Verne's novel Five Weeks in a Balloon, and continued for a run of six novels in all.