Team Logo. The Jacksonville Sharks were a team in the World Football League. They are the namesake of the Jacksonville Sharks of the National Arena League. They folded midway through the 1974 season. Retrieved from "https://prosportsteams.fandom.com/wiki/Jacksonville_Sharks_(WFL)?oldid=17012" Categories: World Football League Teams Teams in Florida Teams in Jacksonville Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.