| Miewi Island | |
| Pushpin Map: | Tanzania |
| Pushpin Relief: | Yes |
| Pushpin Map Caption: | Location on the Mafia Archipelago |
| Map Width: | 200 |
| Location: | Sea of Zanj |
| Archipelago: | The Mafia Archipelago |
| Length Km: | 1.9 |
| Width Km: | 0.6 |
| Ethnic Groups: | Matumbi, Ndengereko & Rufiji |
| Languages: | Swahili |
| Country Admin Divisions Title: | Region |
| Country Admin Divisions: | Pwani Region |
| Country Admin Divisions Title 1: | District |
| Country Admin Divisions 1: | Mafia District |
| Country Admin Divisions Title 2: | Ward |
| Country Admin Divisions 2: | Baleni |
Miewi Island (Kisiwa cha Miewi, in Swahili) is an island of the Mafia Archipelago located in Baleni ward of Mafia District in southern Pwani Region of Tanzania. The island has a small islet to the south east. The Island is located at the mouth of Chole Bay and is bordered to the north is Mafia Island.[1] To the south is Juani Island and to the east is the sea of Zanj. Many locations, particularly off Miewi island, were used for the majority of the sport fishing industry in the islands. However, Tutia reef was regarded to be the best fishing location.[2]