| Zaio | |
| Native Name: | زايو |
| Pushpin Map: | Morocco#Africa |
| Pushpin Relief: | 1 |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Morocco |
| Subdivision Type: | Country |
| Subdivision Name: |  Morocco |
| Subdivision Type1: | Region |
| Subdivision Name1: | Oriental |
| Subdivision Type2: | Province |
| Subdivision Name2: | Nador |
| Unit Pref: | Imperial |
| Population As Of: | 2014 |
| Population Total: | 35.806 |
| Population Blank1 Title: | Ethnicities |
| Timezone: | WET |
| Utc Offset: | +0 |
| Timezone Dst: | WEST |
| Utc Offset Dst: | +1 |
| Coordinates: | 34.9333°N -46°W |
Zaio (Arabic: زايو) is a municipality located in the province of Nador in northeastern Morocco. In 2014 Zaio had a total population of 35,806.