Hundreds of insect species occurring in the French Canadian province of Québec lack a French vernacular name. Many of these species are abundant and have been known for decades, even centuries. Assigning French common names to them would help enhance public awareness and, in the long-term, contribute to their conservation. In the present article, French vernacular names are proposed for 11 common or very common North American moths within the Geometridae, Erebidae and Noctuidae.