JEF may refer to: JEF Japan Economic Foundation, an NGO affiliated with Japan's Ministry of International Trade and Industry JEF United Chiba, a Japanese professional football club JEF, Amtrak station code for Jefferson City station in Missouri JEF, IATA airport code for Jefferson City Memorial Airport in Missouri Jeunes Européens Fédéralistes (Young European Federalists), international association for young advocates of European federation Joint Expeditionary Force, a framework for military forces drawn from the UK and up to nine northern European nations to deploy under British leadership NYSE:JEF, the ticker symbol for Jefferies Financial Group
Jef Jef, a Dutch-language masculine given name primarily found in Belgium "Jef", a Jacques Brel song on the album Ces gens-là, also sometimes called "Jef" Jef (fastfood restaurant), a fast-food chain on Okinawa Island