| Zephaniah | Sofonías |
| zephyr | céfiro |
| Zephyranthes | Zephyranthes |
| Zephyranthes candida | Zephyranthes |
| zeppelin | zepelín |
| Zeptometre | Zeptómetro |
| Zerain | Ceráin |
| Zeratul | Zeratul |
| Zeravshan | Zeravshan |
| Zeren | Procapra gutturosa |
| Zermatt | Zermatt |
| Zermelo set theory | Axiomas de Zermelo-Fraenkel |
| Zernez | Zernez |
| zero | nada |
| Zero energy house | Edificio energía cero |
| zero gravity | ingravidez |
| zero in on | apuntar hacia |
| Zero insertion force | ZIF |
| Zero length launch | ZLL |
| Zero Point Module | ZPM |
| Zero-energy building | Edificio energía cero |
| Zeroconf | Automatic Private Internet Protocol Addressing |
| Zerubbabel | Zorobabel |
| Zerynthia polyxena | Diana |
| Zerynthia rumina | Proserpina |
| zest | entusiasmo |
| zestful | brioso |
| zestfulness | agradar |
| Zestoa | Cestona |
| zesty | fuerte |
| Zeta Aurigae star | Estrellas Zeta Aurigae |
| Zeta Ceti | Zeta Ceti |
| Zeta distribution | Distribución zeta |
| Zeta function | Función zeta |
| Zeta Geminorum | Mekbuda |
| Zeta Orionis | Alnitak |
| Zeta Puppis | Naos |
| Zeta Sagittarii | Askella |
| Zeta Tauri | Zeta Tauri |
| Zeta Ursae Majoris | Mizar |
| Zeta Virginis | Heze |
| Zethos | Zeto |
| zetta- | zetta- |
| Zettabit | Zettabit |
| Zettabyte File System | ZFS |
| Zeulenroda-Triebes | Zeulenroda-Triebes |
| Zeus | Zeus |
| Zeuxine | Zeuxine |
| Zeuxis and Parrhasius | Zeuxis |
| Zeved habat | Zeved habat |
| Zeven | Siete |
| ZFS | ZFS |
| Zgierz | Zgierz |
| Zha cai | Zha cai |
| Zhang Heng | Zhang Heng |
| Zhang Sanfeng | Zhäng Sän Fëng |
| Zhang Xueliang | Zhang Xueliang |
| Zhang Yimou | Zhang Yimou |
| Zhang Ziyi | Zhang Ziyi |
| Zhanna Friske | Zhanna Friske |
| Zhao Ziyang | Zhao Ziyang |
| Zhdanov Doctrine | Doctrina Zhdanov |
| Zhejiang | Zhejiang |
| Zhemgang District | Distrito de Zhemgang |
| Zhenbao Island | Zhenbao |
| Zheng He | Zheng He |
| Zhengzhou | Zhengzhou |
| Zhong Acheng | Zhong Acheng |
| Zhongli Quan | Zhongli Quan |
| Zhongnanhai | Zhongnanhai |
| Zhongshan Park | Parque Zhongshan |
| Zhores Alferov | Zhores Ivanovich Alferov |
| Zhores Ivanovich Alferov | Zhores Ivanovich Alferov |
| Zhou Dynasty | Dinastía Zhou |
| Zhou Enlai | Zhou Enlai |
