| Az Zaydiyah | |
| Pushpin Map: | Yemen |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Yemen |
| Subdivision Type: | Country |
| Subdivision Name: |  Yemen |
| Subdivision Type1: | Governorate |
| Subdivision Name1: | Al Hudaydah Governorate |
| Subdivision Type2: | District |
| Subdivision Name2: | Az Zaydiyah District |
| Unit Pref: | Imperial |
| Population As Of: | 2005 |
| Population Footnotes: | [1] |
| Population Total: | 16,246 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | Yemen Standard Time |
| Utc Offset: | +3 |
| Coordinates: | 15.3292°N 43.0094°W |
Az Zaydiyah (Arabic: الزيدية) is a city located in Al Hudaydah Governorate, Yemen and it is the district capital of Az Zaydiyah District. Its population reached 16,246 people, according to the census conducted in 2005.