JZ is an abbreviation for:

  • Youth center, see children and youth recreational facility
  • Outdated for the Iodine Value (IV ) in the chemical
  • Jump On Zero, a conditional branch instruction to the x86 architecture, see x86 processor
  • Jehovah's Witnesses, a millenarian oriented Christian religious community

JZ as distinguishing signs on license plate:

JŽ stands for:

  • Jugoslovenske Železnice, former state railways of Yugoslavia
  • Disambiguation
  • Abbreviation