JY or Jy may refer to:

People

  • Jimmy Young (broadcaster) (1921–2016), BBC radio broadcaster
  • James Young (American musician) (born 1949), guitarist for Styx
  • Joey Yung (born 1980), Hong Kong cantopop singer
  • Kang Ji-young (born 1994), South Korean actress and singer

Other uses

  • Air Turks and Caicos, IATA airline designator JY
  • Jansky (symbol Jy), a non-SI unit of spectral flux density
  • Japanese yen, a currency unit
  • Jia Yu Channel, a 24-hour Mandarin subscription channel founded in Malaysia
  • Jesus Youth (symbol Jy), an international missionary movement at the service of the Catholic Church
  • , symbol for the Yamanote Line, a loop line operated by the East Japan Railway Company.
  • JY cell line, Epstein-Barr virus (EBV)-immortalised b cell lymphoblastoid line