- ZTS stands for Zend Thread Safety (security feature)
- ZTS stands for Zero Tail Swing (tractor feature)
- ZTS stands for Zveza Tabornikov Slovenije (Slovenian: Scout Association of Slovenia; est. 1922)
- ZTS stands for Zoo Tycoon Support (website)
- ZTS stands for Zope Technical Solutions (software)
- ZTS stands for Z Transition State (Z = nuclear charge)
- ZTS stands for Zenith Truss Structure (International Space Station component)
ZTS