- DIZ stands for Darkness in Zero (Kingdom Hearts; gaming)
- DIZ stands for Description in ZIP
- DIZ stands for Division of Invertebrate Zoology (Society for Integrative & Comparative Biology)
- DIZ stands for Deutsches Institut Zeitarbeit (German: German Time Work Institute)
- DIZ stands for Dienst Interne Zaken (Dutch: Internal Affairs Service; various locations)
- DIZ stands for Direct Impact Zone (environmental management)
- DIZ stands for Development Incentive Zone (various locations)
DIZ