| Official Name: | Oligaun |
| Native Name: | ओलीगाउँ |
| Pushpin Map: | Nepal |
| Pushpin Label Position: | bottom |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Nepal |
| Subdivision Type: | Country |
| Subdivision Name: |  Nepal |
| Subdivision Type1: | Zone |
| Subdivision Name1: | Seti Zone |
| Subdivision Type2: | District |
| Subdivision Name2: | Achham District |
| Population As Of: | 2001 |
| Population Total: | 3429 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Population Blank2: | Hindu |
| Timezone: | Nepal Time |
| Utc Offset: | +5:45 |
| Coordinates: | 29.13°N 81.28°W |
Oligaun is a market center in Mangalsen Municipality in the Seti Zone of western Nepal. The municipality was established merging with existing Janalibandali, Kuntibandali, Oligaun, Jupu and Mangalsen village development committees (VDCs) on 18 May 2014.[1] [2] At the time of the 1991 Nepal census, the village had a population of 3077 living in 657 houses.[3] At the time of the 2001 Nepal census, the population was 3429, of which 41% was literate.[3]