Joseph Gaston Jacques Duval (21 June 1934 – 6 February 2024) was a Canadian journalist, writer and racing driver.

He founded the annual almanac Le Guide de l'auto [fr], of which he served as editor-in-chief from 1967 to 2003.

In the 1990s, he became an advisor for Ford, which faced backlash and accusations that he would no longer be able to remain neutral in Le Guide de l'auto.

In 2004, he was fired from his position as editor-in-chief due to a dispute with his purchaser, LC Média, Inc., which wanted to transform his brand into a publishing house.

In 2007, he published his autobiography, titled Jacques Duval, de Gilbert Bécaud à Enzo Ferrari, with Éditions Québec Amérique.