| Siddheshwar, Kosi | |
| Native Name: | सिद्धेश्वर |
| Settlement Type: | Village development committee |
| 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: | Kosi Zone |
| Subdivision Type2: | District |
| Subdivision Name2: | Bhojpur District |
| Population As Of: | 1991 |
| Population Total: | 3390 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | Nepal Time |
| Utc Offset: | +5:45 |
| Coordinates: | 27.23°N 87.03°W |
Siddheshwar is a village development committee in Bhojpur District in the Kosi Zone of eastern Nepal. At the time of the 1991 Nepal census it had a population of 3390 persons living in 630 individual households. Two major bazaars are Dama on the northwest ridge, where the secondary school is located, and Mandre in the eastern valley where the middle school is located.[1]