Z20
Z20或Z-20可以指：
- 直-20直升机
- Z19/20次列车，北京至陕西西安之间的直达特快列车
- Z-20卡尔·加尔斯特号驱逐舰，德国驱逐舰
- ICD-10 第二十一章：影响健康状态和与保健机构接触的因素中，“接触和暴露于传染病”的编号
| Y20 | ||
| Z19 | Z20 | Z21 |
| Z20 | - | 20Z |
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