IDK may refer to:

Music

  • IDK (rapper), British-American rapper
  • "IDK" (song), a 2020 song by Lil Tecca
  • "IDK Y", a 2022 song by Joel who

Other uses

  • Abbreviation for I Don't Know
  • Indulkana Airport (IATA: IDK), in Indulkana, South Australia, Australia; see List of airports by IATA airport code: I
  • Internationale der Kriegsdienstgegner/innen, the German section of War Resisters' International
  • Internal derangement of the knee, an alternative named for an anterior cruciate ligament injury

See also

  • I Don't Know (disambiguation)