| Abbreviation | Definition |
|---|---|
| ZEN | Zenaga |
| ZHA | Zhuang |
| ZHO | Chinese |
| ZIA | ZiaZia: native language of Papua New Guinea |
| ZIB | Zimbabwe Sign Language |
| ZIW | Zigula: a language of Tanzania |
| ZME | Mangerr: a language of Australia |
| ZMG | Magadige: a language of Australia |
| ZMK | Mandandanyi: a language of Australia |
| ZMU | Muruwari: a language of Australia |
| ZMV | MBARIMAN- GUDHINMA: a language of Australia |
| ZMW | MBO: a language of Congo |
| ZMY | Mariyedi: a language of Australia |
| ZMZ | Mbandja: a language of Congo |
| ZOC | ZOQUE, COPAINALÁ: a language of Mexico |
| ZOQ | Tabasco Zoque: a language of Mexico |
| ZOS | FRANCISCO LEÓN ZOQUE: a language of Mexico |
| ZPC | Choapan Zapoteco: a language of Mexico |
| ZPI | Santa Maria Quiegolani Zapoteco: a language of Mexico |
| ZPJ | Quiavicuzas Zapoteco: a language of Mexico |