Gender feminine Jeannette is a diminutive form of French name Jeanne.Feasts and saints related to given name Jeannette Synaxis of Prophet Forerunner and Baptist John Feast day January 7 When is Jeannette's name day? Jeannette's Day is celebrated on January 7 in memory of Synaxis of Prophet Forerunner and Baptist John. Variantes et traductions Ζαννέτα (el) Log in or register to post comments Be the first to rate this name Leave this field blank