| Mutur | |
| Native Name: | மூதூர் මුතූර් |
| Settlement Type: | Town |
| Pushpin Map: | Sri Lanka |
| Subdivision Type: | Country |
| Subdivision Name: | Sri Lanka |
| Subdivision Type2: | Province |
| Subdivision Name2: | Eastern |
| Subdivision Type3: | District |
| Subdivision Type4: | DS Division |
| Population As Of: | 2012 |
| Population Footnotes: | [1] |
| Population Total: | 23,652 |
| Coordinates: | 8.4539°N 81.2656°W |
Mutur, or Muttur, is a town in the Trincomalee District of Sri Lanka, located about 25 km south of Trincomalee, on the southern side of Trincomalee Harbour. In Tamil it translates to 'ancient village'. Mutur is mostly accessed by sea route. After 2010, a new seaside road was built to link with Trincomalee town via Kinniya.
It is said that the business of pearl bathing was popular in the early days of this city, which depends on the sea and hence the name Muttur was given to this town. But over time, the name has changed to Maruvi Muthur. Muslim people live here and Tamil people live in Sampur, the eastern part of Muthur.
In 2006, it was the site of a massacre of employees of the non-governmental organization Action Against Hunger.[2]