Of Irish origin and meaning “fair.” Which technically refers to skin and hair, but let’s hope the “fair” part also refers to an increased willingness to share toys and snacks. Don’t hold your breath, though. Your Gannon could still be “that kid” at play dates.
Famous people named Gannon:
Football players Gannon Sinclair and Gannon Conway; son of actor Matt Salinger (and grandson of novelist J.D. Salinger), Gannon Salinger.
Maybe your little Gannon will grow up and attend his same-named Gannon University in Erie, Pennsylvania.