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