- ZT stands for Zoo Tycoon (game)
- ZT stands for Zero Tolerance
- zT stands for Zum Teil (German: partly, to some extent)
- ZT stands for Zuidelijk Toneel (Dutch theater company)
- ZT stands for Zone Time
- ZT stands for Zion Train (band)
- ZT stands for Zichy-Thyssen (Arabian horses)
- ZT stands for Zen Tricksters (website)
- ZT stands for Zero-Tail
- ZT stands for Zero Tear (printers)
- ZT stands for Zimmermann Telegram (war proposal)
- ZT stands for Zebra Time
- ZT stands for Total Available Effort
- ZT stands for Zipper Tubing
- ZT stands for Zydeco T (Atlanta, GA band)
- ZT stands for Zulu Time (GMT 0.00) (military designation for Greenwich Mean Time)
ZT