| Mtonya | |
| Official Name: | Kata ya Mtonya, Wilaya ya Mtwara-Mikindani |
| Settlement Type: | Ward |
| Pushpin Map: | Tanzania |
| Subdivision Type: | Country |
| Subdivision Name: | Tanzania |
| Subdivision Type1: | Region |
| Subdivision Name1: | Mtwara Region |
| Subdivision Type2: | District |
| Subdivision Name2: | Mtwara-Mikindani District |
| Area Total Km2: | 3.6 |
| Population As Of: | 2012 |
| Population Total: | 1,912 |
| Population Density Km2: | auto |
| Elevation M: | 50 |
| Postal Code Type: | Tanzanian Postal Code |
| Postal Code: | 63111 |
Mtonya is an administrative ward in Mtwara-Mikindani District of Mtwara Region in Tanzania. The ward covers an area of,[1] and has an average elevation of .[2] According to the 2012 census, the ward has a total population of 1,712.[3]