An ecozone may refer to:

  • Biogeographic realm, the broadest biogeographic division of Earth's land surface (referred to as ecozone by BBC)
  • Biome, a large collection of flora and fauna occupying a major habitat
  • Bioregion, an ecologically and geographically defined area that is smaller than a biogeographical realm, but larger than an ecoregion
  • Ecoregion, an ecologically and geographically defined area that is smaller than a bioregion
  • Ecozone (Canada), one of 15 first-level ecological land classifications in Canada