Double J

Double J or Double Jay may refer to:


 * Double Jay, the former name of Australian radio station triple j
 * Double J (radio station), the triple j-run rebranding of radio station Dig Music
 * Double-J stent, a ureteric stent used in urology
 * Double-J (manga), a comedy manga by Eiji Nonaka
 * Double Jay (horse), an American Thoroughbred racehorse
 * Double J, ring name of professional wrestler Jeff Jarrett